The Boise Foothills Reservoirs offer freshwater diving and snorkelling across a spread of reservoir sites in the Mountain West. Catfish and Perch are the most consistently observed species, with Trout, Small Mouth Bass, Rainbow Trout, Kokanee, and Large Mouth Bass also recorded. Visibility varies from limited to moderate depending on conditions. Several local operators serve the area, making it accessible for those new to freshwater diving as well as more experienced divers looking to explore inland waters.



6 operators
Buhl, United States
Twin Falls, United States
Garden City, United States
United States
Fin maps 19 sites in Boise Foothills Reservoirs (9 scuba diving sites and 12 snorkelling spots, with some suited to both).
19 more sites to explore












Catfish and Perch are the most frequently observed species across the sites here. Divers have also recorded Trout, Small Mouth Bass, Rainbow Trout, Kokanee, and Large Mouth Bass, though these appear at fewer sites. Encounters depend on the specific reservoir and the time of year.
The reservoir sites include a mix of skill levels, and the calm, enclosed nature of reservoir diving makes it a reasonable environment for those building freshwater experience. Visibility can be limited at times, so beginners should be comfortable with low-visibility conditions before heading to depth. Several local operators, including Boise Scuba Center and Dawn's High Desert Divers, can provide guidance on site selection.
Many sites across the Boise Foothills Reservoirs are accessible from shore, which suits both divers and snorkellers who prefer not to rely on a boat. Operators such as Banbury Adventures and AWOL Adventure Sports At Centennial Park can advise on the best entry points. Checking conditions before arriving is worthwhile, as visibility varies between sites.
Visibility across the region spans a wide range, from quite murky to reasonably clear depending on the site and season. This is typical of freshwater reservoir diving in the Mountain West, where sediment and algae can affect clarity. Divers and snorkellers planning a visit should check local conditions in advance and be prepared for variable underwater clarity.