

Best for beginner divers, 8-14m, shore entry, mild current.
Three Oaks Recreation Area at Pearl Lake is a freshwater site featuring an artificial reef and dedicated training infrastructure. Divers access the water from the shore or a floating dock located east of the marina. The site offers three training platforms positioned 100 feet apart at a depth of 7.6 metres. The average depth across the area is 10 metres, with a maximum depth of 14 metres. Conditions include mild currents and visibility ranging from 3 to 12 metres. Divers should be prepared for a noticeable thermocline at approximately 7.6 metres, as well as potential hazards including boat traffic, cold water, entanglement risks, and fluctuating visibility.
42.21924, -88.30214
Many divers float an SMB tied to Platform 1 to indicate divers are down, as park rules call for a dive flag.
Pay for parking at the gate, then proceed to the boat launch building to show your Open Water card, sign a waiver, and pay the daily diving fee.
Recorded at this site
Depth
8-14m
Visibility
3-12m
Skill Level
Beginner
Entry
Shore
Current
Mild
Typical Dive
45 min
Best Time
May, Jun, Jul, Aug, Sep, Oct
Yes, the site is rated for beginner divers.
The average depth is 10 metres, with a maximum depth of 14 metres.
Divers can access the site from the shore or from the floating dock located east of the marina.
Yes, the site is suitable for snorkelling and holds a rating of 3 out of 5 for the activity.
Divers should be aware of boat traffic, cold water, potential entanglement, low visibility, and a thermocline at approximately 7.6 metres.
Diving at Three Oaks Recreation Area in Crystal Lake, IL requires the following certifications: Open Water. Always dive within your training limits.
The best months to visit Three Oaks Recreation Area in Crystal Lake, IL are May, June, July, August, September, and October. Conditions outside these months can still be good but are less predictable.
Three Oaks Recreation Area in Crystal Lake, IL typically has mild currents that most divers can handle comfortably.
Visibility at Three Oaks Recreation Area in Crystal Lake, IL typically ranges from 3 metres to 12 metres. Conditions vary with weather, tides, and seasons.