Off Sarasota the Gulf floor is mostly flat sand that deepens very slowly, which makes every pile of rubble on it a fish magnet. Reef material has been going down in Sarasota County's waters since 1980: FWC's reef database lists 261 separate deployments, from bridge rubble and concrete modules to barges and retired Army tanks. Some sit inside the bay in 10 to 15 feet of water, and some are 30 miles out.
Inside the bay
Sarasota Bay has a cluster of small reefs in about 10 to 15 feet of water, including the Walker, Hart's Family, Sportfish Anglers, MOTE, Saprito Pier and Jantzen reefs. The Sarasota Bay Estuary Program added 24 reef units at six sites in 2024 (Bayshore North, Whale Key and Bayshore South on the Manatee County side, plus Walker, Hart's Family and Sportfish Anglers), and more modules went down in 2025 and 2026.
These are small-boat spots, good for sheepshead and mangrove snapper around the structure. Take care where you anchor: FWC asks boaters to anchor only on bare sand, never on seagrass.
Close to the beach
The Silvertooth reef complex is the easiest Gulf reef to reach from Sarasota: about 25 to 33 feet of water, roughly a mile or two off Lido and Siesta keys. Material has gone down there for decades, from bridge rubble to concrete modules, with more added as recently as 2026. Farther south, Venice Reef, in about 28 feet just off Venice, dates back to 1980.
On a calm morning these are within reach of a bay boat, and they hold bait and the fish that follow it. In spring and fall that includes Spanish mackerel and kingfish on their runs.
Farther out
- The shallower M-series reefs, such as M-1 through M-5, in about 40 to 43 feet some 6 to 9 nautical miles off the Lido and Siesta beaches. The M numbers continue into deeper water farther out and farther south.
- Fallen Heroes Reef (M-8), about 58 to 63 feet, roughly 14 nautical miles west-southwest of Big Sarasota Pass, built partly from retired M-60 Army tanks.
- M-11, about 70 feet, farther south off Manasota Key.
- The D-series reefs, about 105 to 110 feet, roughly 25 to 31 nautical miles out. FWC says gray triggerfish, which live alongside red snapper, are usually deeper than 80 feet, so this is where those fish start to show.
Manatee County's reefs are worth knowing too: Borden Reef, patches of limestone boulders in 39 to 40 feet about 6 nautical miles west-southwest of Longboat Pass, and the 1-Mile, 3-Mile and 7-Mile reefs off Anna Maria Island, a short run north from Longboat Pass.
State or federal water?
State waters end 9 nautical miles from shore, and federal rules can differ from the state's for the same fish. FWC's reef database marks each site as state or federal: of Sarasota County's 261 deployments, 217 are in state waters and 44 in federal waters, including Fallen Heroes Reef and the D-series. Know which side of the line you're fishing before you keep anything.
Finding them
Use the official lists, not numbers passed around online:
- Sarasota County's artificial reef page has the county's own reef list.
- FWC's reef locator has an interactive map and downloadable reef lists for the whole state.
- Manatee County's reef page for Borden Reef and the Anna Maria reefs.
Treat every position as a starting point. FWC warns that some entries come from historical records that haven't been checked, and that reef material moves, breaks up and gets buried. Run to the position, idle around until the structure shows on your sounder, then set up so the wind or current settles you over it.
What lives there
- Gag grouper spend up to a year on the bay's grass and move offshore to ledges and reefs as adults. FWC research in Charlotte Harbor found young gag leaving the bays mostly from October to December, so the near reefs see younger gag in the cool months.
- Red grouper from about 1 to 6 years old use the nearshore reefs, FWC says, and older fish live farther offshore.
- Sheepshead gather on rocks, reefs and channel markers to spawn in late winter and early spring.
- Mangrove snapper are most active in summer.
- Spanish mackerel and kingfish hang around the bait on the nearshore reefs during their spring and fall runs.
FWC's angling guide sums up how a reef works: small fish move onto the new material first, and bigger predators like grouper and amberjack follow.
Gear and paperwork for reef fish
- Gear rules. For Gulf reef fish, FWC requires non-stainless steel circle hooks when you use natural bait, a dehooking tool, and a descending device or venting tool rigged and ready to use. The federal descending-device requirement lapsed in January 2026 while NOAA works on continuing it, but FWC's page still lists one, so carry it either way. Fish brought up from deeper than about 50 feet often suffer barotrauma, swelling from expanding gas, and a descending device gets them back down alive. See FWC's gear rules.
- State Reef Fish Survey. Fishing from a private boat for gag, red grouper, red snapper, amberjack, gray triggerfish and other listed reef fish requires the free State Reef Fish Angler designation, even if you're 65 or older and don't need a license.
- Seasons. Grouper and snapper seasons are set each year, some are very short, and state and federal rules can differ. Check FWC's grouper rules and NOAA Fisheries' bulletins before every trip.
Before you go
The bay reefs are the easy trip. The Gulf reefs are a different story once the wind comes up, and the D-series is a long run. Check the conditions on our Sarasota page and read our guide to the marine forecast for Sarasota and Venice before you go outside.