The Androscoggin Yacht Club http://aycwayne.org/ was founded over 100 years ago and has been in continuous operation ever since. It is one of the favorite gathering places for the whole Wayne Community during the summer months. A mooring is available for your boat for as little as $55 for however long you would like to stay. There is a convenient and well maintained boat launch at the end of the entrance driveway. Here is a membership link so you can join and moor your boat http://aycwayne.org/become-a-member/
The Yacht Club also offers swimming lessons for all ages and skill levels, as well as sailing lessons. Visit the Yacht Club website and get the details. You will need to sign up for any lessons as early as possible so that your place is assured.
The Yacht Club is just a short distance from the village center. Fast and easy to access.
There is not currently anyone who is leasing out boats for use on Lake Androscoggin.
Clark Marine http://www.clarkmarine.biz/home.html in Manchester is a good, reliable source for a wide variety of boats.
Belgrade Canoe and Kayak Rental http://www.belgradecanoeandkayak.com/ will deliver and pick up from your vacation home.
Note: the Yacht Club has paddleboats and rowboats available for the use of members.