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.

(2,197)
$$$$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 (2,197)

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4.7

2,197 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.

Rita RC
Rita RC

2 weeks ago

Peaceful and calm. Great for paddleboarding

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