Below are some options. These are links to everything on the market for sale in each town listed on a map so you can see proximity to the water and Boston.
I hope that helps!
Massachusetts Premier Buyer Brokerage
I grew up in Winthrop and in my opinion I couldn't think of a better place. Yes, you'll hear airport noise. However everything else, the beaches, the proximity to Boston, the yacht clubs, etc.. far out weigh the noise. If your familiar with Winthrop and could picture yourself here, don't let the airport turn you away, you wouldn't regret living in Winthrop. Plus when you do need to catch a plane, you can do it for a $15 cab ride, $20 w/ a tip. In the summer it is like living in a vacation town.
Another negative about Winthrop is paying $3.50 to use the tunnel when going to Boston, but you'll pay that commuting from any north shore town. I know Winthrop really well, so feel free to email me, I'd like to show you some homes around town.
either way, Good Luck.
Carey T. Hansen
"Your Real Estate Agent today, tommorow and into the Next Generation"
1243 Commonwealth Ave.
Allston Ma 02134
Fax : 888-875-6973
Licensed Real Estate Professional
I suggest checking out the Squantum area in Quincy, it is very close to the city but has a coastal feel as well as deep water access if you plan to have a boat/mooring.
Also very desirable, but maybe beyond your price range, would be Hingham. Hull is a good alternative and there is a commuter boat that takes you right across the harbor into downtown. I have experience in both the North Shore and South Shore as well as Nantucket so please feel free to contact me.