

Best for intermediate divers, 3-29m, shore & boat entry, mild current.
Alcatraz Rock is a prominent rock formation located near the dam in Pactola Lake. This site features vertical topography that attracts divers and snorkellers, with depths ranging from 3 to 46 metres and an average depth of 17 metres. Divers should be prepared for a thermocline around 12 metres, where temperatures drop significantly. Conditions include mild currents and visibility between 4 and 7 metres. The site is accessible by both shore and boat, though boat access is recommended. Hazards include boat traffic, cold water, and low visibility. Facilities at the location include parking, toilets, showers, changing rooms, air fills, equipment rental, a cafe, a dive shop, and boat charter services.
44.07350, -103.48850
There is a white arrow pointing down and attached to a tree on the north bank just left of a large rock formation in the water known locally as Alcatraz.
Access can be by boat or shore. There is a white arrow pointing down and attached to a tree on the north bank just left of a large rock formation in the water known locally as Alcatraz.
Recorded at this site
Depth
3-29m
Visibility
4-7m
Skill Level
Intermediate
Entry
Shore & Boat
Current
Mild
Typical Dive
45 min
The site ranges from 3 to 46 metres deep, with an average depth of 17 metres.
No, the site is rated for intermediate divers due to the depth, cold water, and low visibility conditions.
Yes, Alcatraz Rock has a snorkel rating of 4 out of 5, though it is best reached by kayak or boat.
Yes, the site allows for both shore and boat entries.
Divers should be aware of boat traffic, cold water, deep sections, low visibility, and a thermocline.
Diving at Alcatraz Rock in Johnson Siding requires the following certifications: Open Water. Always dive within your training limits.
Yes, equipment rental is available at or near Alcatraz Rock in Johnson Siding. Contact local dive operators for specific gear availability and prices.
Alcatraz Rock in Johnson Siding typically has mild currents that most divers can handle comfortably.
Visibility at Alcatraz Rock in Johnson Siding typically ranges from 4 metres to 7 metres. Conditions vary with weather, tides, and seasons.