Located at Schildberg Rock Quarry this private quarry has been a popular dive site with divers for over 20 years. The Rock Wall is one of two dive sites at this location. The Rock Wall runs along the south side of the quarry and starts in 6-8 feet of water and drops to 30-40 feet.

The dive site is accessed by the stairs down to the small park area which includes a bench. Entry and Exit is via the small beach. Once you enter the water if you head southwest you can locate 4 intake pipes. The Southernmost one runs to the Tower. Divers can follow each of the 4 pipes for navigation.

The site is named for the hotel that once stood next door. The site has 3 water pipes that come from the shore. The first two meet at 60ft/18m of depth at the collector. The northern most also goes out to 60ft/18m. Dive Flag is required, and the entry can be tricky because of the rocky entry.

Big Blue is a quarry located in Lester Milligan Park in Mason City Iowa. The quarry is on the South West side of town approximately 2 miles North of IA-27. There are several places to park for an easy shore entry.

Turkey Ridge is a rock bottom quarry near Janesville, Iowa. It is owned by the county and you must have permission (acquired by signing a waiver and donating to the upkeep of the quarry) to use this site. There is also a training platform, tube swim-through, sunken statue, and a few other points of interest.

Indoor Pool - Max Depth 13.5 Feet/4m - Confined water training & practice site. Start your Open Water certification here or specialties. Complete a Scuba Skills Update or practice your buoyancy.

War Axe State Recreation Area. Depth is max 25 feet and is great for beginners, but yet enjoyed by experienced divers as well. Attractions include a statue, sunken boats, platforms. Aquatic life include bass, bluegill, crappie, catfish, walleye and turtles.

The 1,128-acre park was once the site of a coal strip-mining operation. Between June 1964 and October 1967, the Peabody Coal Co. removed more than 1.2 million tons of coal from the Boone County site, known as Mark Twain Mine, leaving barren piles of earth and numerous pits of water.

Sandy Channel is a Nebraska State Recreation Area. Water depth is max 7,5m/25 feet is great for beginners but also enjoyed by experienced divers as well. Attractions include a plane, submarine, platform, scuba diving hippo, and more. Aquatic life includes bass, bluegill, crappie, catfish, walleye, and turtles.

Sandy Channel is a Nebraska State Recreation Area. Water Depth is max 25 feet and is great for beginners, but yet enjoyed by experienced divers as well. Attractions include a statue reef, sunken boats, platforms, tower of tires. Aquatic life include bass, bluegill, crappie, catfish, walleye and turtles.