In an unscheduled stopover on a breezy, clear June day, the Polynesian sailing vessel Hokule’a put in at Menemsha for the night on Monday. She makes the final leg of her trip to Vineyard Haven Tuesday, where she will dock at Packer’s Wharf for three days. Tentative arrival time is 1 p.m.

Mission is environmental awareness. — Ray Ewing

The 40-foot double-hulled canoe is on a historic voyage around the world, part of a global mission to help save the planet.

The Hokule’a left Hawaii more than two years ago, heading west across the Pacific and Indian oceans, with stops including New Zealand, Australia, Bali, South Africa, Brazil and the Virgin Islands. Beginning in April, the canoe began its slow journey up the East Coast of the United States, stopping in the Everglades, Chesapeake Bay, New York City and elsewhere.

Late last week she and her crew arrived at Mystic Seaport in Connecticut.

The Hokule’a will be open to the public on Wednesday, with a variety of events planned at the wharf.

She departs Friday for Woods Hole.