Billy's rents all types of bikes, including surreys for the whole family. Rentals are by the hour (two-hour minimum), day or week. Free maps of the city's bike paths are available there. Bike rental rates begin at US$15 per day, US$25 for three days, US$40 per week. 1470 Periwinkle Way, Sanibel Island. Phone 239-472-5248. http://www.billysrentals.com.