You should try the Hopkins / Sittee River Area.
It is centrally located on the mainland & very close to the Coxcomb Basin most of the resorts can book tours for you or if your have rental car getting to your destination is half the fun. One of the places that we really like and about the same price as seaside cabanas is Beaches and dreams
prices includes full breakfast.
You can email me if you have other questions about that area