Turquoise waters of Gunlock Reservoir with red rock cliffs and desert mountains under clear blue sky in southern Utah near Zion National Park.
Points of Interest

Gunlock State Park

Red rock reservoir with easy water access, quiet camping, and fishing that draws locals who skip the crowded parks.

(2,211)
$$$$Gunlock, UT

About

Gunlock State Park sits in the shadow of Zion and Bryce, which means you'll actually find parking and elbow room here. The reservoir spreads across a quiet corner of southern Utah with towering red rock walls rising directly from the water. It's the kind of place where you can fish in the morning, paddle a kayak in the afternoon, and camp under stars without fighting crowds. If you're looking for a less-trafficked alternative to the main park corridor, this is it.

The Water and Lake Access

The main draw is the water itself. Gunlock Reservoir spans roughly 120 acres and sits at about 2,600 feet elevation, surrounded by rust-colored cliffs and open desert sky. The shoreline is accessible from multiple points, making it easy to find a quiet spot to fish, swim, or just sit and watch the light change on the rocks. Kayak rentals are available on site, so you don't need to bring your own gear.

The water level fluctuates seasonally (it's lowest in late summer), but that's part of the desert rhythm here. Note: due to occasional cyanobacteria concerns in regional waterways, avoid submerging your head or filtering drinking water directly from the lake. Bring bottled water for drinking.

Hiking and Trails

Trails around the park are short and easy. The walk to the lake from the main parking area takes just a few minutes. Some visitors hike to a waterfall, though the flow depends entirely on water levels and recent rainfall (don't count on it in dry seasons). The real appeal isn't technical hiking; it's the combo of water access, solitude, and red rock views without the permit lines or shuttle queues you'd deal with at Zion proper.

Camping and Amenities

Camping here is solid. The park has RV sites with full hookups and tent-friendly spots, plus clean bathrooms and shower facilities. It's a genuine working campground, not a wilderness experience, but that's the point. You get comfortable amenities and easy lake access in a landscape that feels remote.

Popular activities include:

  • Fishing year-round for bass and catfish

  • Kayaking (bring your own or rent on site)

  • ATVing (check current regulations with the park office)

Best Time to Visit

The best time to visit is spring through fall, though the park stays open year-round. Summer heat can be intense (100+ degrees), so early morning or evening activities work better then. Winter is mild by Utah standards, making it a solid off-season option if you're in the region. Bring plenty of water, sunscreen, and a hat; shade is limited around the lake.

Getting There

Gunlock sits about 15 miles northwest of St. George, Utah, roughly 45 minutes from Zion's south entrance. From Zion, head west toward Hurricane and follow signs to Gunlock. There's no entrance fee for day use, though camping has a modest nightly rate. Parking at the day-use area is free and rarely crowded. If you're based in Springdale or staying near Zion, Gunlock makes an easy half-day or full-day escape when you want water, fishing, or just a quieter version of red rock Utah.

What to See at Gunlock State Park

Gunlock Reservoir is the central feature — roughly 120 acres of water surrounded by rust-colored cliffs that rise directly from the shoreline. The combination of red rock walls at the water's edge gives the reservoir a different visual character than most Utah lake destinations. The shoreline is accessible from multiple points, so visitors can find both developed and quieter stretches of shore depending on how much they want to explore. The walk to the water from the main parking area takes just a few minutes. Short trails around the park are easy and flat, focused on access to the lake rather than elevation gain. The seasonal waterfall that some visitors seek requires recent rainfall and high water levels — it should not be counted on as a reliable feature.

Visitor Tips

  • Shade around the lake is limited — bring a hat, sunscreen, and more water than you expect to need for any extended time at the shoreline, particularly in summer.
  • Cyanobacteria can affect the reservoir periodically; check current conditions before swimming or submerging, and avoid filtering lake water for drinking.
  • Fishing here targets bass and catfish year-round; anglers should have a current Utah fishing license before visiting.
  • ATV use is possible in this area but regulations can change — contact the park office before bringing off-highway vehicles to confirm current rules.
  • Cell service is limited in this part of Washington County; download offline maps and the park's information before leaving St. George.

Planning Your Visit

Gunlock sits about 15 miles northwest of St. George, roughly 45 minutes from Zion's south entrance. Most day visitors spend two to four hours at the park between hiking, fishing, kayaking, and time at the water. Kayak rentals are available on site, so bringing your own equipment is not required for paddling. The water level fluctuates by season and is typically lowest in late summer. The campground includes RV hookups and tent sites with showers and clean facilities. The park is open year-round, though summer heat can be intense and early morning or evening activity is more comfortable in July and August.

Park Amenities

Pet Friendly
Free Parking
Accepts Credit Cards

Reviews (2,211)

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4.7

2,211 reviews

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A quick trip from Summerlin LV for a fun water filled weekend... They have so many water toys for rent, and beach is fairly clean with a handful of partially shaded picnic tables. Make sure to wear water shoes as the beach is very rocky. The water is so refreshing on hot summer days. We have camped in the campground and showers are clean, this time we chose to stay in the cottages for rent. My kids loved the loft, but it did get hot up there as the air conditioning was in the front bedroom and the living room area - we brought a fan with that helped circulation of air in the loft. Basic kitchen, but there were some bugs in the house...we had to bring all of our own linens (including towels) so that took up alot of space in the car, kind of a pain....other than that, we LOVE this hidden gem 💎! Water and electricity is available at all campsites too, which is so nice to have.

Austin Ivie
Austin Ivie

6 months ago

Here’s a review you could post: Visiting Gunlock Falls when the water is flowing is incredible. When the spillway is running, the waterfalls cascade down the red rock in multiple tiers and it turns the whole area into a natural playground. The contrast of the water against the desert landscape is unreal and makes it one of the most unique spots in Southern Utah. It’s an easy walk to the falls and you can climb around on the rocks, explore the different pools, and take amazing photos. Just be careful because the rocks can get slippery. If you catch it during a good water year, it honestly feels like you’ve discovered a hidden oasis in the desert. Definitely worth the trip if you’re anywhere near St. George.

Bryson Wyler
Bryson Wyler

3 months ago

If you find yourself in Southern Utah when the stars align and the spillway starts to flow, Gunlock Falls is an absolute must-see. Located within Gunlock State Park, roughly 15 miles northwest of St. George, this isn't your typical year-round waterfall. It is a rare, ephemeral phenomenon that occurs only when the Gunlock Reservoir reaches capacity, sending an overflow of crystal-clear water cascading over orange-red sandstone cliffs. ​The Landscape: Red Rock Meets Rushing Water ​The contrast at Gunlock is nothing short of spectacular. Unlike the towering, singular drops of the Pacific Northwest, these falls are a series of cascades and punchbowls carved directly into the ancient rock. The vibrant "Utah Orange" of the sandstone against the white foam of the rushing water creates a palette that is a dream for photographers and nature lovers alike. ​Why It’s Worth the Trip ​Interactive Exploration: This isn't a "stand behind the railing" type of park. You can hike right up to the water’s edge, scramble over the boulders, and find your own private nook to watch the flow. ​Natural Swimming Holes: Below the main falls, the water settles into deep, emerald pools. On a warm spring day, there is no better place in the desert to take a dip. ​Accessibility: The hike from the parking lot to the falls is relatively short and manageable, making it accessible for families and those who aren't looking for an all-day trek. ​Pro-Tips for Your Visit ​Check the Flow: Because the falls are dependent on reservoir levels and snowpack melt, they don't run every year. Always check the Official Utah State Parks website or local social media groups before making the drive. ​Wear Grippy Shoes: The sandstone can be incredibly slick when wet or covered in fine desert sand. A pair of sturdy hiking boots or water shoes with good traction is essential. ​Go Early: When the falls are running, word spreads fast. To beat the crowds and secure a parking spot, try to arrive before 9:00 AM, especially on weekends. ​Respect the Rock: This is a delicate ecosystem. Pack out what you pack in, and be mindful of the "No Jumping" signs in certain areas—the water levels in the pools can change rapidly. ​Final Verdict ​Gunlock Falls is a reminder of why Southern Utah is one of the most unique places on Earth. It’s a powerful, temporary display of nature's beauty that transforms a quiet reservoir into a world-class destination. Whether you’re looking to cool off in the pools or just capture the perfect long-exposure shot of the cascades, Gunlock never disappoints.

Susan Woods
Susan Woods

5 months ago

Very pretty place. Not much water this year (2026) but still pretty cool. Worth seeing.

Kevin Dore
Kevin Dore

6 months ago

Beautiful but can get a bit crowed. It would be better if dogs were not allowed particularly as two owners within the span of 45 minutes did not pickup after their pets.

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