TILDEN TOWNSHIP, Pa. -

Authorities in Berks County are reminding people that "The Rock," or "Peace Rock," a once a popular swimming destination, is officially closed.

New "no trespassing" signs went up last month, and Tilden Township police have been cracking down. Since the signs went up, police said they have seen a decrease in traffic in the area.

"As far as being on the property, you cannot walk onto the property. You cannot fish on the property," said Ofc. Peter Whitman, Tilden Township Police Department.

Authorities are enforcing the "no trespassing" on both the Berks County and Schuylkill County sides of the Schuylkill River.

Police are frequently patrolling the area and getting tips from neighbors.

The Pennsylvania Department of Environmental Protection owns the land, and it's considered private property.

Tilden Township police said they've issued dozens of citations since the signs were installed.

During the busy Labor Day weekend, Tilden Township police said 44 citations were issued for trespassing.

"We did have the other arrests for the marijuana, the open containers of alcohol, but the majority is going to be the criminal trespass," added Whitman.

Something police said they could avoid if people just obey the signs.

"You know, you see a sign for no trespassing, just turn around and go back the other way. It's as simple as that," said Whitman.

Police, however, said floating through the river is permitted.

"At this point, you can float through the river, either by boat, kayak, raft, however, you're going traverse the river as long as you are in the waterway. You can traverse the whole area," said Whitman.