Halfway Pond is a 232-acre natural warmwater pond with an average depth of nine feet and a maximum depth of 13 feet. Transparency is good at 10 feet. There are almost three miles of shoreline, only lightly developed. The bottom is primarily sand and vegetation is common on the eastern side of the island. Halfway Pond is supplied with water by groundwater, a small stream in the northwest corner, and reportedly a pipe to Long Pond. Halfway Pond serves as the headwaters for the Agawam River and is also used as a water source for cranberry bogs. Access to Halfway Pond is provided by the Wildlands Trust of Southeastern Massachusetts and can be located on the western shore of the pond off of Mast Road. Parking is limited to just two or three cars, and boaters will have to stick with canoes and other cartop craft. Substantial amounts of shoreline are open to fishing, however. The island in the middle of the pond is a research preserve owned by the Nature Conservancy and is open only by prior permission. Fish Populations: alewife, white sucker, yellow perch, pumpkinseed, bluegill, banded killifish, largemouth bass, smallmouth bass, tesselated darter, white perch, American eel, chain pickerel, and golden shiner. In the 2000 survey, yellow perch and alewives were the most abundant fish species and largemouth bass and smallmouth bass were the most abundant gamefish.
Halfway Pond a 232-acre (0.94 km2) warm water pond located in Plymouth, Massachusetts between Myles Standish State Forest and Long Pond, west of Round Pond, southwest of Gallows Pond, and north of Fawn Pond and White Island Pond. The average depth is nine feet and the maximum depth is 13 feet (4.0 m). The pond is fed by the outflow of Long Pond and drains into the Agawam River. Halfway Pond Island lies in the middle of the pond and is managed as a research natural area by The Nature Conservancy in Massachusetts. There are almost three miles (5 km) of shoreline.