They are located about a quarter mile south of the Alton Circle, and they rent Kayak, PFD, and paddle for $25 per day. Normally open from around May 1 to Oct. 12th.
In the past, you could transport them away as opposed to putting them into the Merrymeeting River adjacent to the deli.
Ph 603-875-1000
Here is their website:
http://www.rrdeli.com/
We rented on Mother's Day two years ago, and wife's was free (Happy Mother's day) and mine was only $15. Spent about 4 plus hours on the Merrymeeting, and as a bonus, we got wraps, chips, dessert, and drinks to go with us. One stop shopping at its best.