How long are you staying at the state park? Check out keys Shuttle (12 passenger van), Greyhound, car rental, the bus. It is a 2 hour drive without accidents by car and much longer with bus stops. We have not used any of the buses or shuttle. We did rent a car for the day and drove up to Bahia Honda from KW. There are many places to check out just getting to KW. You could rent a car for a day (8 am to 8 am next day) for $75 +/-. Head out early and come back later. Watch out for key deer especially at night on Big Pine Key. Hit one, big fine. There is a city parking garage at 300 Grinnel, $32/day or $4/hr. ($4! Yeah 2 beers w/tip was $10 about 5 yrs ago in May) Did I say bring lots of money? This garage is near the harbor aka bight, fun area. You can walk everywhere if you are able. Keyweststeps.com will tell you distance between places. As said the streets are narrow and crowded. It is a cool place you will be glad you have the whole day! On the drive back you will be planning your next trip to KW. There is a current thread on this forum about the Keys drive and KW.Have fun! Marcia