Scroll down below the map to add hotel and attraction locations to your map. The Sanibel Causeway is unique. Home Sanibel Beaches Sanibel Attractions Bike Paths Bike Rentals FAQ Search X hide menu Sanibel Island Trails Map. There are two islands along the causeway; Island … Can I ship packages to the hotel? • If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. The Causeway Islands are open from 7 a.m. to dusk, seven days a week.