

# Event Details

- **Event Name**: San Antonio River Basin Bioblitz 2026
- **Event Start and End Date**: Wed, 25 Mar, 2026 at 08:30 am – Wed, 20 May, 2026 at 11:00 pm (-05:00)
- **Event Description**: Join us for three days of community science and nature exploration Trueheart Ranch Nature Park. Something for everyone!About this EventPlease see our Agenda for specific survey and activitiy times.Are you a nature-lover? Do you enjoy learning about our natural world through science and data? Come and join the San Antonio River Authority's Environmental Science team in gathering scientific data at Trueheart Ranch Nature Park!Over the course of 4 days, you will be able to participate in one or multiple different biological surveys including:BirdsBatsPlants &amp; TreesButterfliesNocturnal InvertebratesAmphibians &amp; ReptilesWant to just come out and learn from a River Authority scientist? There are also educational, guided walks and activities available to come and learn about the ecosystems that exist within Trueheart Ranch Nature Park. If you've got littles who want to be involved, join our Jr. River Warrior activities on Saturday!Please see our Agenda for specific survey and activitiy times.Day 1: Wed, March 25🕑: 08:30 AM - 09:00 AMiNaturalist TrainingInfo: Want to explore the park on your own, at your own pace and still collect environmental data? Download the iNaturalist app, and we’ll show you exactly what you need to make a comprehensive observation that can also benefit the park!🕑: 09:00 AM - 11:00 AMBeautification Service ProjectHost: San Antonio River AuthorityInfo: Join the River Authority for a park beautification effort near our new outdoor classroom. We’ll help clear and restore a section of the historic acequia, preserving its history and keeping the park beautiful.🕑: 09:00 AM - 10:30 AMTrueheart Nature Park Landmarks TourHost: San Antonio River AuthorityInfo: Step back in time and explore the history of Trueheart Ranch Nature Park. Join River Authority staff for a guided landmarks tour where you’ll visit the historic ranch home, learn about the acequia that once delivered water for irrigation, and hear the story of the Otilla Dam. Along the way, discover how the San Antonio River Authority is working to modify the dam to improve fish passage and reconnect the river, helping to support healthier ecosystems for the future.🕑: 07:00 PM - 07:30 PMiNaturalist TrainingInfo: Want to explore the park on your own, at your own pace and still collect environmental data? Download the iNaturalist app, and we’ll show you exactly what you need to make a comprehensive observation that can also benefit the park!🕑: 07:30 PM - 09:00 PMBat WalkHost: Bat Conservation InternationalInfo: Feeling batty? Join bat experts from Bat Conservation International on a walk on the trails to detect if bats are present in the park and experience nature at night! 🕑: 09:00 PM - 11:00 PMMoth &amp; Nocturnal Bug SurveyHost: Peter Joseph HernandezInfo: Join a Master Naturalist and River Authority scientists to discover the smaller nocturnal animals that are attracted to light! Watch for beetles, flies, moths, and more, all with a wide range of shapes, colors, and important ecological roles. No experience needed, just interest. This is a great activity to practice your nighttime photography!Day 2: Thurs, March 26🕑: 07:30 AM - 09:30 AMBird SurveyHost: Bexar Audubon SoceityInfo: Join local birding experts from the Bexar Audubon Society and River Authority scientists on a birding trail walk! All levels of birding experience are welcome. Please bring your binoculars as we’ll have a limited number available to borrow.🕑: 08:00 AM - 08:30 AMiNaturalist TrainingInfo: Want to explore the park on your own, at your own pace and still collect environmental data? Download the iNaturalist app, and we’ll show you exactly what you need to make a comprehensive observation that can also benefit the park!🕑: 08:30 AM - 11:30 AMPlants Across the Park - Vegetation SurveyHost: San Antonio River AuthorityInfo: Join River Authority scientists on a guided exploration to identify and learn about the vegetation that calls Trueheart Ranch Nature Park home. Discover the vital role plants play in supporting healthy ecosystems while learning how scientists study and monitor plant communities. You’ll get access to off-trail parts of the park and discover different methods of assessing vegetation.🕑: 09:00 AM - 11:00 AMWalk with a Scientist - Aquatic BiologyHost: San Antonio River AuthorityInfo: Join River Authority aquatic biologists at the river to see how they monitor and protect fish communities in our local waterways. Discover how different parts of the river, from fast riffles to deep pools, support different kinds of aquatic life. Learn how habitat and water flow, shape where fish live and how scientists study these communities to keep our rivers healthy. Please wear closed-toe shoes. A very limited number of waders will be available.🕑: 09:30 AM - 10:00 AMiNaturalist TrainingInfo: Want to explore the park on your own, at your own pace and still collect environmental data? Download the iNaturalist app, and we’ll show you exactly what you need to make a comprehensive observation that can also benefit the park!🕑: 01:00 PM - 02:00 PMWildlife Cam - Animal IdentificationHost: San Antonio River AuthorityInfo: Are you curious about what wildlife is around that you can't see? Help us sort through trail camera footage from Hendrick Arnold Park and discover what animals are evading our senses. This activity requires little walking and no experience!🕑: 06:00 PM - 07:30 PMAmphibian and Reptile SurveyHost: San Antonio River AuthorityInfo: Love snakes, frogs, and lizards? Curious about the role these fascinating creatures play in healthy ecosystems? Join experts from the City of San Antonio Parks and Natural Areas and the River Authority to discover the slithery, slimy, and scaled residents that call Trueheart Ranch Nature Park home. Day 3: Fri, March 27🕑: 08:00 AM - 08:30 AMiNaturalist TrainingInfo: Want to explore the park on your own, at your own pace and still collect environmental data? Download the iNaturalist app, and we’ll show you exactly what you need to make a comprehensive observation that can also benefit the park!🕑: 08:30 AM - 11:00 AMExploring SoilsHost: San Antonio River AuthorityInfo: Did you know that soil is teeming with life? In fact, San Antonio has several different soil types that help support a wide range of ecosystems. Join River Authority scientists for a hands-on learning experience where you’ll dig into the world beneath your feet. Learn how to collect soil samples, examine soil profiles, and identify different soil types, while discovering how soil influences the plants and ecosystems around us.🕑: 09:00 AM - 11:30 AMButterfly SurveyHost: San Antonio River AuthorityInfo: Join River Authority scientists on a walk to observe and identify butterflies like hairstreaks, swallowtails, and even metalmarks! This is a no-catch event, but you're welcome to bring cameras and close-range binoculars.🕑: 09:30 AM - 11:00 AMWalk with a Scientist - Phenology: Nature's Alarm ClockHost: San Antonio River AuthorityInfo: On this educational walk, a River Authority scientist will discuss phenology, seasonal cycles like the timing of blooms, available food sources for the animals that depend on them, weather patterns, and how climate change can have an impact. No experience necessary! 🕑: 11:00 AM - 12:00 PMShowcase: Lab Science DemonstrationsHost: San Antonio River AuthorityInfo: Did you know the River Authority operates an accredited laboratory where scientists analyze water samples from the San Antonio River and its tributaries? Stop by for a lab demo and speak with one of our laboratory scientists to learn how we monitor water quality. No reservation required!🕑: 11:30 AM - 12:00 PMiNaturalist TrainingInfo: Want to explore the park on your own, at your own pace and still collect environmental data? Download the iNaturalist app, and we’ll show you exactly what you need to make a comprehensive observation that can also benefit the park!Day 4: Sat, March 28🕑: 08:00 AM - 08:30 AMiNaturalist TrainingInfo: Want to explore the park on your own, at your own pace and still collect environmental data? Download the iNaturalist app, and we’ll show you exactly what you need to make a comprehensive observation that can also benefit the park!🕑: 08:30 AM - 10:30 AMAvian SurveyHost: San Antonio River AuthorityInfo: Join local birding experts from the Bexar Audubon Society and River Authority scientists on a birding trail walk! All levels of birding experience welcome! Limited number of binoculars provided, or bring your own. 🕑: 08:30 AM - 10:00 AMExploring SoilsHost: San Antonio River AuthorityInfo: Did you know that soil is teeming with life? And that we have several different types of soil in San Antonio that support different ecosystems? Dig into a unique learning experience with River Authority scientists and learn how to take soil samples, analyze a soil profiles, and identify different soil types and their impact on plants. 🕑: 09:00 AM - 12:00 PMPlants Across the Park - Vegetation SurveyHost: San Antonio Water SystemInfo: Join River Authority scientists on a guided exploration to identify and learn about the vegetation that calls Trueheart Ranch Nature Park home. Discover the vital role plants play in supporting healthy ecosystems while learning how scientists study and monitor plant communities. You’ll get access to off-trail parts of the park and discover different methods of assessing vegetation.🕑: 09:00 AM - 12:00 PMShowcase: Lab Science DemonstrationInfo: Did you know the River Authority operates an accredited laboratory where scientists analyze water samples from the San Antonio River and its tributaries? Stop by for a lab demo and speak with one of our laboratory scientists to learn how we monitor water quality. No reservation required!🕑: 09:00 AM - 09:30 AMiNaturalist TrainingInfo: Want to explore the park on your own, at your own pace and still collect environmental data? Download the iNaturalist app, and we’ll show you exactly what you need to make a comprehensive observation that can also benefit the park!🕑: 09:00 AM - 11:00 AMJunior River Warriors Family ActivityHost: San Antonio River AuthorityInfo: Do you have a junior naturalist in your family? We invite your family to join the San Antonio River Authority’s Education and Engagement Team for a fun, educational family activity and scavenger hunt! Most appropriate for children ages 8+.🕑: 10:00 AM - 10:30 AMiNaturalist TrainingInfo: Want to explore the park on your own, at your own pace and still collect environmental data? Download the iNaturalist app, and we’ll show you exactly what you need to make a comprehensive observation that can also benefit the park!
- **Event URL**: https://allevents.in/san-antonio/san-antonio-river-basin-bioblitz-2026/100001984405694852
- **Event Categories**: workshops, trips-adventures
- **Interested Audience**: 
  - total_interested_count: 2

## Ticket Details

- **Ticket URL**: https://consumer.pxf.io/c/1339408/3151484/39691?partnerpropertyid=1191892&MediaPartnerPropertyId=1191892&svlink=14105511&level=1&u=https%3A%2F%2Fwww.eventbrite.com%2Fe%2Fsan-antonio-river-basin-bioblitz-2026-tickets-1984405694852

## Event venue details

- **city**: San Antonio
- **state**: TX
- **country**: United States
- **location**: Trueheart Ranch Nature Park
- **lat**: 29.2724739
- **long**: -98.4322809
- **full address**: Trueheart Ranch Nature Park, 14984 Blue Wing Road, San Antonio, United States

## Event Organizer details

- **affiliate_id**: 10
- **organizer**: San Antonio River Authority (https://allevents.in/org/san-antonio-river-authority/22780474)

## Event gallery

- **Alt text**: banner
  - **Image URL**: https://cdn-az.allevents.in/events10/banners/ae36fb6df6437a8a088cb54f0eb09b202928646b1957072f4f6246e3b26cc88c-rimg-w612-h396-dcfefefe-gmir.jpg?v=1772939637
- **Alt text**: thumbnail
  - **Image URL**: https://dyn-image.allevents.in/generate-image?v=4&title=San+Antonio+River+Basin+Bioblitz+2026&date=25+Mar

## FAQs

- **Q**: When is the event happening?
  - **A:** Wed, 25 Mar, 2026 at 08:30 am (-05:00)
- **Q**: Where is the event happening?
  - **A:** Trueheart Ranch Nature Park, 14984 Blue Wing Road, San Antonio, United States
- **Q**: Who is organizing the event?
  - **A:** San Antonio River Authority
- **Q**: What type of event is this?
  - **A:** workshops, trips-adventures
- **Q**: Where can I find ticket details about San Antonio River Basin Bioblitz 2026 ?
  - **A:** You can find ticket details about this event on AllEvents.

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