Charter boat on the Gulf of Mexico near Treasure Island at golden hourDramatic clouds over the Gulf of Mexico near Treasure IslandMarine13 pontoon charter boat anchored off the beachMarine13 dolphin & sunset charter cruising the Intracoastal

Sun, sand, and a boat made for good vibes.

Dolphin cruises, sunset sails, shelling, snorkeling, fishing, and private Gulf days — booked directly with a local captain who knows every pass, sandbar, and secret spot.

USCG-licensed captain
Small-group experience
Locally owned & operated
Treasure Island home port

Dolphin sighting promise

Don't spot a wild dolphin on a dolphin cruise? We'll get you back out on us. TODO(marine13): confirm final terms.

Weather-safe rebooking

If the captain calls it for weather, you reschedule or refund — no fees, ever.

USCG-licensed captains

Every trip runs with a licensed captain and Coast Guard–approved safety gear on board.

Trips

Pick your perfect day on the water

Small-group, captained, and built around the Gulf's best-kept beaches, sandbars, and islands.

Dolphin & Wildlife Cruise
Cruise

Dolphin & Wildlife Cruise

Spot wild bottlenose dolphins and Gulf coast wildlife on a family-friendly cruise.

~2 hours Up to 6 guests
  • USCG-licensed captain
  • Bottled water
  • Coolers welcome
Best for: Families & first-time visitors
Gulf Sunset Cruise
Cruise

Gulf Sunset Cruise

Watch the sun sink into the Gulf with drinks in hand and warm coastal air.

~1.5 hours Up to 6 guests
  • USCG-licensed captain
  • Bluetooth speaker
  • Coolers & drinks welcome
Best for: Couples & date nights
Egmont Key Snorkel Trip
Adventure

Egmont Key Snorkel Trip

Snorkel clear Gulf water around Egmont Key's historic reef and jetty.

~4 hours Up to 6 guests
  • Snorkel gear provided
  • Captain safety briefing
  • Bottled water
Best for: Adventurers & swimmers
Inshore Fishing Charter
Fishing

Inshore Fishing Charter

Chase snook, redfish, and trout in the flats and passes with a local captain.

~4 hours Up to 4 anglers
  • Rods, reels, tackle
  • Live bait
  • Fishing license coverage
Best for: Anglers of every level
Private Custom Charter
Private

Private Custom Charter

Design your own day on the water — sandbars, islands, sunset, or combos.

Flexible (3–8 hours) Up to 6 guests (larger vessels by request)
  • Fully customized route
  • Concierge planning call
  • USCG captain
Best for: Private groups & special occasions
Private events

A private day designed around you

Bachelorettes, birthdays, corporate outings, weddings, and memorial-at-sea services.

How it works

Book in three easy steps

1. Choose your trip

Browse dolphin, sunset, shelling, snorkel, fishing, or private charters.

2. Pick your day

Reserve directly. We confirm the dock, time, and what to bring.

3. Set sail

Meet your captain at Treasure Island and enjoy the Gulf.

Guests

Loved by locals & visitors

"Best two hours of our trip. Captain was warm, the sunset was unreal, and the boat was spotless."
Jamie R. · Sunset Cruise
"The kids saw dolphins within ten minutes. Felt like a private tour — we had the whole boat to ourselves."
The Alvarez Family · Dolphin Cruise
"Marine13 dropped us on an empty stretch of Shell Key and picked us back up on time. Pure paradise."
Priya S. · Shell Key Adventure

Give a day on the Gulf

Gift cards for dolphin cruises, sunsets, and private charters — the easiest present on the coast. Launching soon.

Ask about gift cards

Design your day on the water.

Whether it's a sunset for two or a private group day around Shell Key, we'll plan it with you and put you on the water with a captain who knows the coast.