Also known locally as Watermelon Spring

Summary

Sunbeam Spring is a unique riverbed spring located in the Santa Fe River near Fort White. Unlike classic Florida springs with large spring runs, this one emerges directly through a limestone fracture in the middle of the river. The result is a visible “boil” of clear, cool groundwater pushing up through darker river water.

Locals often call it Watermelon Spring, and you’ll hear both names used by paddlers. It’s a favorite stop for kayakers and canoeists looking for a refreshing dip during a Santa Fe River trip. Because it’s only accessible by water and has no facilities, it feels remote and natural.

At lower river levels, parts of the limestone fissure may be visible, offering a rare glimpse of water flowing directly out of the rock.

Activities

Most visitors experience Sunbeam as a mid-trip stop while kayaking or canoeing the Santa Fe River. On warm days, paddlers often stop for a quick swim in the cool spring water. The refreshing temperature contrast is especially noticeable in summer.

Cave Diving (For Certified Cave Divers Only)

Sunbeam Spring is also known within the cave diving community for having underwater spring vents that connect to a submerged cave system. These openings are located in the riverbed and may not be obvious at normal river levels.

⚠️ This is not a site for recreational scuba divers.
The cave passages are associated with strong flow, tight restrictions, and overhead environments that require:

• Full cave diving certification

• Proper cave-configured equipment

• Advanced training in high-flow systems

• Support and surface safety planning due to boat traffic

Because the spring vents are located in an active river channel, divers must also manage river current and passing vessels. Only properly trained and equipped cave divers should consider this site, and conditions vary significantly with river levels.

Here is an excellent post with information on cave diving at Sunbeam Spring.

Access

Boat or paddle access only — there is no legal land access.

Sunbeam Spring sits directly in the Santa Fe River channel and is typically reached as part of a river paddle.

Closest convenient launch:
Bowman’s Landing is one of the nearest and most commonly used public access points. From here, paddlers head upstream to reach the spring. The paddle is manageable for those with some experience, though the current can make the return trip more work.

Other Santa Fe River boat ramps upstream or downstream can also be used depending on your float plan.

From the water, look for a circular boil or lighter patch of water along a bend in the river, slightly toward the Columbia County (north) side.

⚠️ Do not attempt to follow GPS driving directions to the spring itself. Surrounding land is private property and there is no road access.

River level and conditions

Nearby Springs

• Rum Island Springs
• Gilchrist Blue Springs State Park
• Poe Springs
• Ginnie Springs