If you're looking for a fun Father's Day weekend activity check out the annual Maine blues festival in naples Maine. There are venues throughout the town and you can buy a $12 ticket to get into any venue or just meander around town, sitting on the grass watching all sorts of bands strum and sing their hearts out. Many of the venues are restaurants or bars and if you have a ticket you can ride a free shuttle between concerts. There's also an option of a 'blues cruise' on the songo river queen (fantastic massive old paddleboat) which goes out on a couple of Long Lake tours with a band. Come for the music, the booze or the people watching. But festivities continue most of the weekend starting Friday evening.