These community event listings are sponsored by the
WaterWheel Foundation, a project of the Vermont band Phish.
Revelers search for aliens in Pine Hill Park, followed by a monster mash for all ages. Kids' trick-or-treating trail, 4-5 p.m.; scary trail guided tours, 6-9 p.m.; community party, 4-9 p.m.
Price: Free; preregister.