People don't come to MacKenzie State Park for the swimming, it's mostly the scenery and fishing visitors are after. This portion of Puna's coast is jagged lava fingers and leaning palms. The ocean often punishes these low cliffs, so steer clear of the edge. There is a picnic area perfect for a nice lunch. However there is no potable water. This area does not have the best reputation, so be wary of shady types. Camping is allowed with permit, but not advisable.