Weekend Tampa Bay Island-Hop by SUP — Caladesi to Three Rooker

The dolphins show up around mile two. Three of them, tracking your board from 30 feet below and then surfacing alongside with a casual exhale that sounds louder than it should in the quiet morning. You’re paddling a flat green channel between Honeymoon Island and the far end of Caladesi, and the Gulf of Mexico is opening up in front of you, and the mainland is already a thin line behind.

Tampa Bay’s barrier island chain runs 35 miles down Pinellas County from Clearwater to the mouth of Tampa Bay, and most of it is so developed that the few undeveloped stretches feel like anachronisms. Caladesi Island and Three Rooker Bar are two of those anachronisms — accessible only by water, quiet on weekday mornings, and home to some of the most productive wildlife habitat on the Gulf Coast.

A stand-up paddleboard, as a craft, is the right tool for this route: shallow enough to explore the seagrass flats without grounding, quiet enough not to scatter the shorebirds, and stable enough for beginners at the basic level this trip requires.

Three Rooker Bar in September is empty except for skimmers and terns. In April it’s a nesting colony. Know which month you’re in.

Overview

Caladesi Island State Park is a 600-acre undeveloped barrier island accessible only by ferry from Honeymoon Island State Park or by paddle/boat from Dunedin Causeway. Three Rooker Bar is a 100-acre sandbar island 3 miles offshore, accessible only by water. The route between them traces the Gulf-side beach and the protected bay-side channels.

Best time: October through May. Summer brings afternoon thunderstorms (daily in July–August) and the nesting season closure on Three Rooker (April–August). Fall is ideal — cooler, lower crowds, and the bird life on Three Rooker transitions from nesting to wintering shorebirds.

Difficulty: Moderate. The Caladesi bay-side paddling is easy. The open-water crossing to Three Rooker is moderate — exposed to Gulf chop, requires balance in moving water.

Base camp: Dunedin or Clearwater (Day 1); Caladesi Island campsite if you’ve reserved one (Day 2).

Day by Day

Day 1 — Dunedin Causeway to Caladesi Island

Launch from the Dunedin Causeway paddle launch (free, off Main Street) by 8 a.m. Paddle north and west through Hurricane Pass, the tidal cut between Honeymoon Island and the Dunedin waterfront. Dolphins work this pass consistently — it’s one of the most reliable dolphin-viewing areas on the Gulf Coast.

Round the south tip of Honeymoon Island and enter Caladesi by the protected bay side. The paddling along the Caladesi bay channel is sheltered, shallow (1–4 feet), and excellent for spotting spotted eagle rays, loggerhead sea turtles (common in fall), and reddish egrets working the flats. The beach on the Gulf side of Caladesi is one of the few undeveloped Gulf beaches in Florida — rated among the top 10 beaches in the US by multiple rankings, and genuinely extraordinary in its emptiness on a Tuesday.

If you’ve reserved a campsite, set up at the marina and spend the afternoon on the beach. If not, return to Dunedin Causeway by early afternoon.

Paddle distance: 8–10 miles round trip.

Day 2 — Three Rooker Bar crossing

Launch early (7 a.m.) when the Gulf is typically calmer. From the Gulf-side beach of Caladesi or from the Honeymoon Island boat launch, the crossing to Three Rooker Bar is 2.5–3 miles across open Gulf water.

Pick a calm morning (sustained winds under 10 mph; check the marine forecast). The swell is typically 1–2 feet in fall — manageable on a SUP with balance. Paddle with the wind if possible; the crossing is easier with a following sea than against it.

Three Rooker Bar in fall/winter is a mixed shorebird assemblage: red knots, sanderlings, American oystercatchers, and black skimmers on the beach; brown pelicans and royal terns resting on the sand point. On a good day in October, the beach will have thousands of birds in a strip of 200 yards. The southern tip of the island has an oyster reef that exposes at low tide — good for wading and observing.

Return before afternoon. Cross back to Honeymoon Island or Caladesi, break down gear, and return to the mainland by 2 p.m. to avoid afternoon thunderstorm season (June–September) or just end the day cleanly.

Paddle distance: 7–12 miles depending on starting point and Three Rooker exploration.

What to Pack

• Stable SUP board: A wide, stable touring or all-around board (at least 31” wide) for the crossing. A surfboard-style narrow board is not appropriate for open water with gear. Rental boards from Dunedin or Honeymoon Island outfitters are typically appropriate.
• Leash: Always. If you fall, your board should not leave you.
• PFD: Required by USCG regulations when paddling in navigable waters. Inflatable belt PFDs are comfortable and don’t restrict paddling.
• Dry bag: Phone, keys, sunscreen, food — all waterproofed.
• VHF radio or PLB: For the Three Rooker crossing. Gulf waters can change in 30 minutes; if a squall builds, you need to be able to call for help.
• Reef-safe sunscreen: You will be on the water for hours under full sun.
• Binoculars: Three Rooker is worthless without them.

Getting There

Dunedin Causeway: take Main Street west off US-19A in Dunedin, FL. Causeway parking is free. Honeymoon Island State Park: 1 Causeway Blvd, Dunedin, FL 34698. $8/vehicle entry. Caladesi Island ferry: from Honeymoon Island, $20/person round trip (does not allow personal watercraft — if you’re paddling your own board, launch from Dunedin instead).

Conditions, Honestly

• Gulf weather: The Gulf of Mexico is not the ocean, but open-water conditions can build fast. Check NOAA marine forecast for “Coastal Waters from Tarpon Springs to Suwannee River” the morning of the crossing. If it says “wind waves 2 to 3 feet with occasional 4 feet,” postpone.
• Boat traffic: Hurricane Pass and the Caladesi bay channel see significant boat traffic on warm weekends. Stay in the shallowest water, maintain visibility, and use a flag or orange inflatable.
• Three Rooker nesting closure: April–August, portions of the island are closed to human approach. Visiting in September–March avoids this entirely.
• No facilities on Three Rooker: No toilets, no shade, no water. Pack what you need.

What It’s Not

This is not a downwinder or a performance SUP trip. If you’re looking to train or cover distances, the sheltered bay channels and the 3-mile crossing are not challenging enough to satisfy that need. This is an observational, wildlife-focused route where the value is what you see from the water, not the workout you get crossing it.