The length of stay requirement is set by local ordinance. Bring your kayak or bicycles or rent them on the Island -- rent daily, for the week or a month ~ they provide pick up and delivery. Plan a great Florida vacation here on Sanibel Island. Just imagine waking up in a beachfront cottage with the waves of the Gulf of Mexico as your alarm clock. When planning a trip to Southwest Florida, finding the best places to watch the sunset on Sanibel Island should be a top task on your list.