Lake Marian: depth, boat ramps and water quality

Boat: 2 ramps and launches on file for this water.
Start here: Launch at Lake Marian Public Boat Ramp (aka. Fred's Fish Camp), 2 lanes, concrete.

The lake

Lake Marian covers 4,666 acres in Florida, across Osceola County. It is a lake: 95.2% of it is 14 feet deep or less; the deepest point measured is at least 16 feet (4.9 m). Our records hold 19 species for this water.

Depth and bottom

Deepest measured point: at least 16 ft (4.9 m). That is the deepest contour line: the bottom goes deeper. 95.2% of the water is 14 feet or shallower. We hold 58 depth contour lines for this water.

  • 0–2 ft: 8.1% of the water
  • 2–4 ft: 7.4% of the water
  • 4–6 ft: 7.9% of the water
  • 6–8 ft: 9.9% of the water
  • 8–9 ft: 6% of the water
  • 9–10 ft: 6.8% of the water
  • 10–11 ft: 9.4% of the water
  • 11–12 ft: 16.6% of the water
  • 12–13 ft: 17.6% of the water
  • 13–14 ft: 5.5% of the water
  • 14–16 ft: 4.8% of the water

Water and conditions

Water clarity runs 1–1.6 feet on our readings, averaging 1.2 feet, from 56 readings. Water temperature averages 77°F across the year. The coldest single reading we hold is 60°F and the warmest is 93°F; the warmest monthly average is 86°F. pH averages 7.7. These readings span 2017–2025.

Monthly average water temperature: Jan 66°F · Feb 70°F · Mar 69°F · Apr 76°F · May 83°F · Jun 85°F · Jul 86°F · Aug 86°F · Sep 84°F · Oct 76°F · Nov 74°F · Dec 69°F

2 ramps and launches on this water

On this water we hold 2 trailer ramps and 1 fishing pier.

  • Lake Marian Public Boat Ramp (aka. Fred's Fish Camp) — 2 lanes, concrete, parking for 10 trailers (soft unpaved), no fee, open around the clock, flush restrooms, dock. Kenansville, Osceola County. 700 Lakeside Boulevard, Kenansville 34739 · website osceola.org/agencies-departments/public-works/natural-resources/lakes-management/boat-ramps
  • Lake Marian Paradise RV, MH Park and Marina — 1 lane, concrete, paid, portable restrooms. Kenansville. 901 ARNOLD RD, Kenansville 34739 · website lakemarianparadise.com

Fishing piers

  • Lake Marian/Fred's Fish Camp — no fee, daylight hours. Kenansville, Osceola County. End of Lakeside Blvd., Kenansville 34739

Only one of the 3 places listed has both a fee and opening hours on file: a blank means we hold no such field, not that it is free or always open, and this list may not be complete.

What is hard here

With 95.2% of the water 14 feet or less, low level turns the flats into hazards. Only 2 public ramps are on file, so the launch decides where you fish. Alligators live in Florida fresh water. Keep clear of the bank edge at dawn and dusk, and keep pets away from it. Summer water sits at 86°F: heat and afternoon lightning are the real risks, not the fishing.

Where this data comes from

  • Florida FWC — FWC Florida lake bathymetry: class A, a survey of the bottom.