Jay Street Bridge ,

Lock Haven, Pennsylvania

Each day many commuters cross the Jay Street bridge in downtown Lock Haven, Pennsylvania , unaware of a popular dive site below in the West Branch of the Susquehanna River . It doesn't go down far — only about 22 feet (7 m) — but the visibility at times exceeds 100 feet (30 m), proven by divers using a tape measure. The spot accessed from the north side of the river is a popular training site for area dive shops, and regulars stage cleanups of the site. A dam is about a quarter-mile away and a boat dock about one-eighth of a mile downstream.

Underwater explorers will find the remains of an 80-foot barge dating back to the 1800s, and a 12- to 14-foot boat, as well as boulders, and other treasures. A dive flag is required, and divers should take care not to block the access road.

Depths to: 22 feet (7 m)

Visibility: Usually 60 feet (18 m)

but divers have tape-measured

more than 100 feet (30 m).

Water temperature: 80 degrees Fahrenheit

(27 degrees Celsius) in early August.

Aquatic life: Bass, catfish, carp, turtles.

Fees: None

On-site amenities: Picnic pavilion of 12-15 tables, plus a boat launch and restrooms about one-eighth of a mile away. Being in Lock Haven, nearby lodging and dining options are plentiful.

More info: Visit www.lockhaven.org or call Downtown Lock Haven Inc. at (570) 748-1576.

Open: Year-round.

Getting there: From Interstate 80 in central Pennsylvania , take the Lock Haven exit and go north on U.S. 220 to the Jay Street exit, turn left onto Jay Street , cross the bridge, turn right, and park.