@Charles1801 I would do the following
On Airbnb.com input a location, dates (with +/-3 days) (or just ask for a weekend) and number of guests.
Then click on filter and bring the max price down to something affordable for you.
Next look on the map and zoom it in towards the coastline.
Click on a few listings and, if it is not clear what they offer then send an inquiry to the host asking for details. Frankly you should be able to tell from the listing what it offers as most hosts will be screaming about docks in their backyards.
Hope this helps