The top 2 dive and snorkel sites in Belknap, ranked by diver reviews, with maps and photos. Read the Belknap guide
Mermet Springs is a scuba diving location in Vienna, Illinois. The spring is a former limestone quarry that has been filled with water. The quarry is 120 feet deep and has a variety of fish and other aquatic life.
Mermet Springs offers submerged training platforms, easy entry docks, dives from 15 to 120 feet in depth and numerous sunken treasures to explore. Treasures include trucks, school bus, boats, Boeing 727 from the movie U.S. Marshalls, train car, ambulance, fire truck, one man sub, and a helicopter cockpit. From the main diving dock, you'll see schools of large bluegill, giant albino channel catfish and further down Spoonbills! The water visibility at Mermet Springs is can range from 15 feet to over 60 feet. Water temperature varies with the Midwest seasons and ranges to the low 40s at depth during winter, and to the mid 80s above the thermocline in the summer. Mermet, Southeast of Saint Louis
