River beach ID

ST ANTHONY SAND BAR

By Hidden Swimming Holes Team — Updated February 28, 2026

Visit the St. Anthony Sand Bar for swimming on the Henry's Fork of the Snake River. Find directions, access info, and safety tips for this Idaho river beach.

Free
Access
Semi-official
Status
Very Confident
Confidence
Henry's Fork of the Snake River
Water Body

Location Details

Nearby Towns
IDAHO FALLS, REXBURG, ST ANTHONY
Coordinates
43.965168, -111.6791

About St. Anthony Sand Bar

Tucked along the banks of the Henry's Fork of the Snake River in eastern Idaho, the St. Anthony Sand Bar is one of those rare finds that locals have quietly cherished for generations. It's the kind of place where a summer afternoon stretches out lazily — sandals kicked off, a cold drink in hand, kids splashing in the shallows while adults wade out into cooler, deeper currents. The setting is natural and unhurried, the kind of river beach that asks nothing of you except that you slow down and enjoy it.

The Setting and Landscape

The Henry's Fork earns its reputation as one of Idaho's most beloved rivers long before it reaches this sandy bend. Here, the river opens up into a broad, accessible shoreline where golden sand meets clear, moving water. Cottonwoods and native riparian vegetation frame the scene, casting dappled shade on the banks and providing cover for the wildlife that frequents the area — keep your eyes open for herons picking their way through the shallows or osprey tracing lazy circles overhead. The wide-open Idaho sky overhead and the gentle sound of flowing water make this spot as photogenic as it is refreshing. Whether you've arrived with a camera or just your swim gear, you'll find no shortage of reasons to linger.

The Swimming Experience

What makes the St. Anthony Sand Bar work for such a wide range of visitors is its variety. Near the shoreline, the water runs shallow and warm enough for young children to splash confidently, while deeper channels offer a more brisk, immersive experience for stronger swimmers. The water runs clear, fed by the cold headwaters of the Henry's Fork upstream, and on a hot July afternoon that coolness hits you like a relief you didn't know you needed. The sandy bottom underfoot makes entry comfortable, and the overall character of the beach feels easygoing rather than extreme. This is not a spot that demands skill — it rewards presence. Mid-summer, roughly July through August, delivers the most balanced conditions: warm air temperatures, manageable currents, and water that's cool but not punishing. Spring runoff can push currents higher, so families with young children are best served by waiting until mid-summer to visit.

Practical Information and Local Character

The St. Anthony Sand Bar is free to visit, which only adds to its appeal. Facilities on-site include a picnic shelter and restrooms — modest but appreciated when you've packed a full afternoon's worth of food and sunscreen. Access is easy by car with no strenuous hiking required, making this genuinely suitable for visitors of all ages and fitness levels. The semi-official nature of the site gives it an authentic, unspoiled feel; you won't find resort-style amenities here, but you will find a clean, community-loved stretch of river that hasn't been over-developed or over-crowded.

Plan Your Visit: The St. Anthony Sand Bar sits within easy reach of three eastern Idaho towns — St. Anthony, Rexburg, and Idaho Falls — making it a natural stopping point whether you're a local looking for a quick summer escape or a traveler passing through the region. Stock up on supplies in any of these towns before heading to the river, as on-site facilities are limited to the basics. The best swimming window runs from late May through early September, with peak conditions in the heart of summer.

Getting There

Directions to St. Anthony Sand Bar, Idaho

Starting Point: Idaho Falls, ID

  1. Begin by heading northeast on US Route 20 (US-20) toward Rexburg.
  2. Continue on US-20 through Rexburg, following signs for St. Anthony.
  3. Take the "St. Anthony Downtown" exit off US-20.

In St. Anthony:
4. After exiting, turn left (north) onto Bridge Street.
5. Continue on Bridge Street and then turn right onto Main Street.
6. Follow Main Street and turn right onto North 3rd East (N 3rd E).

Final Approach:
7. Drive to the end of North 3rd East. The park and access point to the St. Anthony Sand Bar will be on the right-hand side.

Parking and Access Tips:

  • Parking is available near the end of North 3rd East. Look for designated parking areas or open spaces near the park.
  • From the parking area, you can easily access the sand bar. There are no long trails or difficult approaches, making it convenient for visitors.

Enjoy your visit to the St. Anthony Sand Bar!

Access Notes

Access is via the end of North 3rd East in St. Anthony. Parking is available near the park area. There is no stated fee for access. Facilities include a picnic shelter and toilets.

Plan Your Visit

Parking & Access

Parking is typically available near the main access point; arrive early on weekends and avoid blocking gates or driveways. The approach follows established paths—expect uneven terrain and occasional slick rock near the waterline.

Regulations & Fees

No fee is commonly reported, but policies change—verify current access rules and hours before you go. This location is commonly accessed via public lands or established easements; stay on designated routes and follow posted rules.

Seasonality & Flow

Water levels and clarity shift with season and recent weather. After storms or snowmelt, expect stronger currents and colder water—choose calm pockets and wade carefully.

What to Bring

Bring sturdy water shoes to protect your feet on rocks and slippery surfaces. A waterproof dry bag keeps your phone, keys, and valuables safe. Pack a quick-dry towel, sun protection, and drinking water — never drink from the natural water source.

Frequently Asked Questions About ST ANTHONY SAND BAR

Is ST ANTHONY SAND BAR free to visit?

ST ANTHONY SAND BAR is generally free to access. No entry fee is commonly reported, though parking passes or day-use fees can be introduced — always confirm current rules before heading out.

Is swimming allowed at ST ANTHONY SAND BAR?

Yes, ST ANTHONY SAND BAR is an officially sanctioned recreation area where swimming is permitted. Reported activities include: Swimming. Always respect posted closures and seasonal restrictions.

What type of swimming spot is ST ANTHONY SAND BAR?

ST ANTHONY SAND BAR is a river beach on Henry's Fork of the Snake River located in ID, near IDAHO FALLS. Visit the St. Anthony Sand Bar for swimming on the Henry's Fork of the Snake River. Find directions, access info, and safety tips for this Idaho river beach.

When is the best time to visit ST ANTHONY SAND BAR?

The best time to visit ST ANTHONY SAND BAR is Late May through early September offers the best swimming conditions, with warm weather and moderate water temperatures. Spring runoff can create stronger currents, so mid-summer is ideal for families.. Water levels, clarity, and temperature vary with recent weather — always check conditions before going, especially after rain or snowmelt.

What facilities are available at ST ANTHONY SAND BAR?

Reported facilities at ST ANTHONY SAND BAR include: The site includes picnic shelters for shade and relaxation, as well as clean restroom facilities. Parking is free and conveniently located.. Amenities can change — contact the managing agency or check recent visitor reports to confirm current availability.

Highlights

Clear and cool waters
Accessible swimming spot
Wildlife sightings
Picnic shelters and restrooms
Photography opportunities

Unique Features

Convenient location near three towns
Balanced mix of accessibility and natural beauty
Shallow and deep areas for varied swimming experiences

Location & Area Map

Safety Information

Important Safety Tips

The river current can be strong; assess conditions before entering and supervise children closely.; There are no lifeguards on duty; swim at your own risk.; Be aware of changing water levels and weather conditions.; Protect against sun exposure with sunscreen and hydration.; Carry out all trash to help maintain the area.

Cultural & Historical Context

Historical Background

The Snake River has been a lifeline for the region’s communities, supporting agriculture and recreation. Nearby towns reflect Idaho’s history and modern development.

Photography Guide

Photo Opportunities

Capture stunning sunrise or sunset views over the river, wildlife in their natural habitat, and candid moments of swimmers enjoying the sandbar.

Conservation & Ethics

Protect This Place

Follow Leave No Trace principles. Protect river ecosystems by avoiding littering and respecting wildlife. Use designated paths to prevent erosion.

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Visit Information

Best Time to Visit
Late May through early September offers the best swimming conditions, with warm weather and moderate water temperatures. Spring runoff can create stronger currents, so mid-summer is ideal for families.
Difficulty Level
Easy access by car; no strenuous hiking required. Suitable for visitors of all ages.
Fee
None
Facilities
The site includes picnic shelters for shade and relaxation, as well as clean restroom facilities. Parking is free and conveniently located.
Activities
Swimming

Nearby Attractions

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Safety & Responsibility

  • Assess conditions on site. Water flow, depth, and hazards change quickly.
  • Follow posted signs and local regulations. Do not trespass.
  • Never jump or dive without checking depth and underwater obstacles.
  • Swim with a buddy and consider flotation for non‑swimmers.
  • Pack out all trash; respect wildlife and fragile environments.
J
Joshua Havens
Founder & Editor, Hidden Swimming Holes

Joshua Havens created Hidden Swimming Holes to make it easier for people to find — and safely visit — natural freshwater swimming destinations across the United States. He researches access conditions, water quality resources, and land management rules so you don't have to start from scratch. He holds a strong belief that good outdoor recreation information should be accurate, honest about its limitations, and freely available.

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