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Lake Tenkiller - Goat Island

Lake Tenkiller - Goat Island

Oklahoma, United States

Depth
Depth Icon

30m

Visibility
Visibility Icon

2m - 5m

Entry
Boat Entry Icon

Boat

Experience Level

Beginner

Lake Tenkiller - Goat Island

Oklahoma, United States

Lake Tenkiller - Goat Island
Depth
Depth Icon

30m

Visibility
Visibility Icon

2m - 5m

Entry
Boat Entry Icon

Boat

Experience Level

Beginner


About Lake Tenkiller - Goat Island

This site is only accessible by boat and is the island closest to the dam! The island has a triangular shape and has everything from walls to gradual slopes. The Small Island offers diving for every level and experience! The island offers a very unique dive if you have good air consumption or dive with 100 cubic foot cylinders. You can actually make one dive around the entire island. Be sure to stay shallow to conserve air. On the West side is the easiest location to anchor your boat and a great location to discover every type of diving this site has to offer. Anchoring in 25-40' of water, you can start your dive to the south and get into the walls or start your dive to the North and you can stay on the slopes and keep your depth shallower. If you get around the wall on the South side, keep an eye out for anchors hanging in the standing timber, some divers describe the site as Christmas trees with several anchors hanging as ornaments. If you choose to pick an anchor, be careful not to exceed your bcd's buoyancy with an extra 18 pounds of weight. Most divers will mark the anchor with a float buoy and pick it up with the boat. The East side offers some of the tallest walls on the lake. Divers can easily reach depths of 100 plus feet. If your looking for a location to beach your boat, the N.E. corner of the island offers a small pee-gravel beach that allows boaters to access the island without the risk damaging your boat.

Lake Tenkiller - Goat Island Dive Info

Terrain & Features

Deep, Wall, Inland, Rock, Muck

Entry Type

Boat

Max Depth

30m

Visibility Range

2m 5m

Experience Level

Beginner

Best Gas Mix

21% – 35%

O2

16% at 28m / 36%

O2
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Marine Life

  • Fresh Water Species
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Location

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Dive Site Hazards

  • Gradual Narcosis Onset — Narcosis may develop slowly, making self-assessment unreliable.

  • Task Fixation at Depth — Cognitive narrowing at depth can reduce awareness of time and ascent rate.

  • Increased Gas Density Breathing Load — Higher gas density at depth increases work of breathing.

  • Unstable Visual Ascents — Relying on wall visuals can destabilise ascents.

  • Gradual Depth Creep — Lack of visual bottom reference can cause unnoticed descent.

  • Unsignalled Downcurrents — Downcurrents can form without visible indicators.

  • Thermocline Buoyancy Shift — Sharp thermoclines can cause sudden buoyancy changes.

  • Instant Visibility Collapse — Sediment disturbance can eliminate visibility immediately.

  • Late Detection of Structures — Submerged structures may only appear at very close range.

  • Bubble Trapping Under Overhangs — Rock overhangs can trap exhaled bubbles, reducing visibility and causing disorientation.

  • Reflected Surge Patterns — Surge reflecting off rock faces can create irregular and unpredictable water movement.

  • Current Funnel Effect — Narrow gaps between rocks can accelerate water flow unexpectedly.

  • Navigation Ambiguity — Lack of reference points makes exits harder to relocate.

  • Unnoticed Depth Drift — Featureless terrain can cause slow, unnoticed depth changes.

  • Camouflaged Hazardous Species — Hazardous marine life may remain unnoticed until very close.

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