From Fort Myers Beach
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No tolls! Conveniently located 1 mile before the Sanibel causeway!
Estero turns into San Carlos Blvd. Take that to the intersection of San Carlos Blvd and Summerlin Rd. Make that left and take it all the way. The last light you will see is at Shell Pointe. We are the following right turn. Look for the large sign out front saying Port Sanibel Marina.