

Best for beginner divers, 6-26m, shore entry, mild current.
Pearl Lake is a former quarry serving as a freshwater dive site. The topography features an underwater playground containing a sunken school bus, an airplane, and a submarine. Depths range from 6 to 26 metres, with an average depth of 11 metres. Divers access the site via a shore entry located 10 metres from the water. Conditions vary, with visibility between 2 and 12 metres and mild currents. A thermocline typically occurs between 7.6 and 10.7 metres during July and August. The site is suitable for beginners and offers facilities including parking, toilets, showers, air fills, and equipment rental.
42.48520, -89.03480
All divers must sign in with Aquatic Adventures at the beach house before entering the diving area and present a diver pass to the attendant.
Located 10 minutes south of the Wisconsin-Illinois border in South Beloit. From I-90 South, exit on Hwy 75, turn right toward South Beloit, turn left at Hwy 251 South, turn right onto the frontage road, and turn right into the Pearl Lake entrance.
Recorded at this site
Depth
6-26m
Visibility
2-12m
Skill Level
Beginner
Entry
Shore
Current
Mild
Typical Dive
60 min
No nearby dive sites found within 50km.
Yes, the site is suitable for beginner divers.
Depths at the site range from 6 to 26 metres, with an average depth of 11 metres.
Pearl Lake is a shore entry site located 10 metres from the water.
Yes, the site has a snorkel rating of 4 out of 5.
Divers should be aware of boat traffic, cold water, deep sections, low visibility, and overhead environments.
Diving at Pearl Lake in South Beloit requires the following certifications: Open Water. Always dive within your training limits.
Yes, equipment rental is available at or near Pearl Lake in South Beloit. Contact local dive operators for specific gear availability and prices.
Pearl Lake in South Beloit typically has mild currents that most divers can handle comfortably.
Visibility at Pearl Lake in South Beloit typically ranges from 2 metres to 12 metres. Conditions vary with weather, tides, and seasons.