At ART’s Oberon at 4 p.m., Pirates of Penzance with a beach-party twist: great music, beach balls, and, as the organizers say, “grown men in remarkably short shorts.” emergingamericafestival.org
CAPE OF GOOD FUN
The six-day Yarmouth Summer Celebration is packed with sand-castle competitions, a fishing derby, fireworks, and more (mostly free) family-friendly activities. 508-778-1008, yarmouthsummercelebration.com
The Revolution is reborn at the official opening of the Boston Tea Party Ships & Museum, where one of only two surviving tea chests from the 1773 protest is on display (but unavailable for heaving overboard). 855-832-1773, bostonteapartyship.com
June 28-July 1
BEAT THE KIWIS!
Competitive types can set sail for Fort Adams in Newport, Rhode Island, to watch current leader Oracle Team USA try to clinch the title of America’s Cup World Series champion. It’s going to be a nail-biter: Emirates Team New Zealand is just 4 points back. americascup.com/newport
June 28-July 6
WELCOME TO WATER WORLD
Boston becomes a port o’ plenty this week, thanks to the overlap of Boston Harborfest, War of 1812 bicentennial celebrations, Navy Week, and OpSail Boston. The HarborWalk offers many great spots to watch the parade of tall ships — about a dozen of them, led by the US Coast Guard’s 290-foot Eagle — between 9 a.m. and noon on Saturday. For an overview of the festivities, including events at 30 area locations every day, go to bostonharborfest.com
June 30-July 4
GET DOWN UP NORTH
This year’s Marblehead Festival of Arts, one of the North Shore’s biggest parties going on a half century, includes five days and nights of live music, films, and art sales. 781-639-2787, marbleheadfestival.orgSHARE YOUR EVENT NEWS. Send information on Boston-area happenings at least two weeks in advance to firstname.lastname@example.org.