Due to poor water quality, the Martha's Vineyard Land Bank is advising visitors at Great Rock Bight in Chilmark to swim at their own risk.

The popular freshwater swimming hole in West Tisbury reopened Tuesday morning after being closed due to high bacteria counts.
An unexpected absence of eelgrass in Nashaquitsa Pond this summer may be the result of crab predation and goose foraging over the harsh winter. The Chilmark shellfish constable said he's never seen such a sudden decline in the aquatic plant that plays a vital role in the life cycle of shellfish.
On Cape Cod ambitious efforts are underway to remediate ponds and estuaries. And when coastal ponds decline, so do property values, the executive director of the Cape Cod Commission, told a meeting at the Katharine Cornell Theatre.
Two downtown beaches in Oak Bluffs reopened to swimming Thursday after a two-day closure.