Gunlock State Park

Gunlock State Park lies about twenty minutes northwest of St. George, where the Santa Clara River was dammed to create a long, blue reservoir surrounded by red and tan hills. In summer the lake is a popular place to swim, paddle and fish, while the dam and rocky shoreline give photographers broad, contrasting views. Campgrounds and day-use areas provide basic facilities, and in many seasons the water is warm enough to make a refreshing change from desert hiking. The park is also known for Gunlock Falls, a seasonal waterfall that appears below the dam when water is released from the reservoir. When flowing, it spills over smooth slickrock into pools, creating a scenic, family-friendly swimming and wading area that locals watch for each spring.

Timing is everything. The falls depend on reservoir levels and releases, and they are not guaranteed every year. Local news and the park's social media often announce when the water is running, so check before you plan a special trip. When it is flowing, the area can be busy, especially on warm weekends, so arrive early to find parking and a pleasant spot on the rocks.

Safety deserves attention. Slickrock is slippery when wet, currents near the spillway can be strong and cold water can surprise swimmers, so keep children close, wear sturdy water shoes and stay away from edges. Supervise carefully and follow signs. Watch for flash-flood warnings in the surrounding area during storm season, and never enter water you cannot see through or judge.

On the lake itself, kayaks and paddleboards offer a calm way to explore the coves, while anglers cast for bass and other species. Boaters should follow state rules about permits and inspection and check conditions before launching. Birds, including herons and waterfowl, are common, and sunsets reflected on the water are a highlight. Pack your own food and shade, as services are limited.

The park fits easily into a half day with Pine Valley or Silver Reef, or as a cool-down after morning hiking. Families like the open space and the chance to splash around. Couples can enjoy a picnic by the water. Photographers find dramatic views at sunrise and sunset, especially when clouds add texture to the sky.

Prices are modest, with a day-use fee per vehicle collected by the state. Camping is available for those who want to stay overnight, and reservations are wise during peak periods. As with all desert reservoirs, water levels vary through the year, so shorelines can look very different from one visit to the next. Whatever the conditions, the park offers a simple, scenic outdoor break from the town and trails, and it makes a dependable plan B if heat or crowds push you out of the canyons.

A good rule is to treat the park as a flexible plan B. If the falls are not running, the lake still offers paddling, picnicking and quiet views. If the weather turns, you can be back in St. George within half an hour. Bring a small cooler, plenty of sunscreen and a towel, and arrive early on weekends so that you can claim a good shady spot before the crowds arrive.