Forty Fathom Grotto

Florida, United States

Depth

75m

Visibility

10m - 30m

Entry

Shore

Experience Level

Advanced

Forty Fathom Grotto

Florida, United States

Depth

75m

Visibility

10m - 30m

Entry

Shore

Experience Level

Advanced

About Forty Fathom Grotto

Directions : Travel north from Ocala on I-75 to exit 71. Go weston S-326 for 7 miles to NW 115th street (a dirt road) and turn right. This road is just past the Cut Above horse ranch. Follow the dirt road for a quarter mile. The grotto is just off to the right. Wooden steps lead down a 70 foot slope to water level. A large floating dock makes water entries a snap. The oblong pool is 150 feet by 400 feet. There are two small caves at 50 feet and an extremely dagerous opening at 100 feet. Absolutely no diving is allowed here.

Forty Fathom Grotto Dive Info

Terrain & Features

Cave, Inland

Entry Type

Shore

Max Depth

75m

Visibility Range

10m – 30m

Experience Level

Advanced

Best Gas Mix

—

CNS Load (20 min)

-1% at 73m / 21%

O₂

Multi-Level Dive Planner

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Marine Life

Various

Weather Conditions

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Dive Operators near Forty Fathom Grotto

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Location

Location details missing.

Dive Site Hazards

Remote Silt Disturbance — Silt can be disturbed metres away from the source.
Rapid Stress Escalation — Stress can increase sharply when visibility or navigation degrades.
High Cognitive Load Navigation — Complex passages increase mental workload even on a line.

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.

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