

Best for intermediate divers, 2-37m, shore entry, mild current.
Mermet Springs is a freshwater quarry located in the Land Between the Lakes region. This site features artificial reefs and wrecks, making it a popular location for various scuba training courses. Divers can explore depths ranging from 2 to 37 metres, with an average depth of 22 metres. Entry is via the shore. Conditions include mild currents and visibility between 5 and 18 metres. A thermocline is present, and water temperatures vary significantly by season and depth, with bottom temperatures reaching approximately 5.5°C. Hazards include cold water, deep sections, and overhead environments. On-site facilities include air fills, equipment rental, a dive shop, and showers.
37.28416, -88.85828
The site features easy entry docks where divers can walk down into the water, perform a giant stride, or use a controlled seated entry.
Located at 6724 N US HWY 45, Belknap, IL 62908.
Recorded at this site
Depth
Up to 37m
Visibility
5-18m
Skill Level
Intermediate
Entry
Shore
Water Temp
7-22°C
Current
Mild
Typical Dive
60 min
Best Time
Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
No nearby dive sites found within 50km.
The site is rated for intermediate divers, though it serves as a facility for various training levels including Open Water.
The site offers depths ranging from 2 to 37 metres, with an average depth of 22 metres.
Access to the water at Mermet Springs is via the shore.
Yes, the site provides on-site air fills, equipment rental, and a dive shop.
Divers should be prepared for cold water, deep sections, low visibility, and overhead environments.
Diving at Mermet Springs in Belknap, Illinois requires the following certifications: Open Water. Always dive within your training limits.
The best months to visit Mermet Springs in Belknap, Illinois are April, May, June, July, August, September, October, and November. Conditions outside these months can still be good but are less predictable.
Mermet Springs in Belknap, Illinois typically has mild currents that most divers can handle comfortably.
Visibility at Mermet Springs in Belknap, Illinois typically ranges from 5 metres to 18 metres. Conditions vary with weather, tides, and seasons.