Somewhere on the grounds of Collier County Parks and Recreation's South Beach parking lot is a bison tube that wants to be found. Access the parking lot off of Swallow Avenue which runs East from Collier Blvd at the south end of Marco Island. Parking is $8 if you are going to stay for a while but you should be able to park, find the cache and escape before having to feed the meter. The lot opens at 8am and closes at sunset.
Do not try to access the cache from Sarazen Park or the private driveway of the condominium off South Collier Blvd. These properties are private property and you won't be able to retrieve the cache using either approach.