Every October, a corner of Union County turns into something between a campground and a neighborhood block party. Whitewater Memorial State Park, the 1,710-acre property a few miles south of Liberty, holds its Spooktacular the weekend of October 23-25, 2026 — three days of Halloween programming spread across the campground, the Poplar Grove Shelter and the Memorial Loop Trail. The schedule is built for campers first, but the park's gate is open to anyone who wants to drive in, and most of what happens over the weekend costs nothing beyond standard park admission.
The weekend opens Friday evening at 7 p.m. with Monster Munch, a welcome treat at Poplar Grove Shelter, followed at 8 p.m. by a round of Halloween Jeopardy billed as the Ghoulish Gathering. Saturday is the busy day. A photo scavenger hunt runs all day, with sheets picked up and prizes claimed at the Camp Store. At 11 a.m. a naturalist leads Fall in the Forest, an easy one-mile walk along the Memorial Loop Trail focused on what the park's plants and animals do to prepare for winter. At 2 p.m. the costume contest takes over the Campground Playground in Loop B — open to all ages and, per the park's own description, to four-legged friends as well.
From 4 to 6 p.m. the campground roads close to vehicles so children can trick-or-treat safely; campers are asked to leave their outside lights on so families know which sites are handing out candy. Campsite judging runs 6 to 9 p.m., with each site receiving two ballots at check-in. The top three decorated sites win free camping, and results are posted at the Camp Store at 10 a.m. Sunday. Also Saturday evening, from 6:30 to 8:30 p.m., DNR staff host Meet the Fleet at Poplar Grove Shelter, showing off the equipment they use around the property, answering questions and running a prize drawing for visitors who stop at every station. The night closes at 9 p.m. with Spooky Senses, a session at Poplar Grove Shelter that asks participants to test their abilities as a nocturnal predator. Sunday's single event, Spinetingling Spiders at 9 a.m. at the Campground Playground, is a naturalist talk on an animal the park describes as often misunderstood.
The setting carries more weight than a typical state-park campground. Whitewater Memorial was established in 1949 as a living memorial to Hoosiers who served in World War II, and it was dedicated specifically to veterans from Union, Wayne, Fayette and Franklin counties — the four east-central Indiana counties that surround the park. It is Indiana's sixteenth state park, and the memorial purpose is written into the landscape itself: the Memorial Loop Trail, where Saturday's forest hike takes place, is the park's signature path, running along the shore of the park's 200-acre no-wake lake before turning inland through woods and picnic areas. Poplar Grove Shelter, the hub for most of the weekend's indoor programming, sits along that route.
The park's geography helps explain why a Halloween weekend works here at all. Whitewater Memorial lies in the Whitewater River Valley, a stretch of rolling, fossil-rich Ordovician limestone country that looks more like Kentucky than the flat farmland many travelers expect from Indiana. It sits beside Brookville Lake, the 5,260-acre U.S. Army Corps of Engineers reservoir completed in the 1970s, and the two properties are managed together as one of the largest outdoor recreation complexes in eastern Indiana. The park draws roughly 240,000 visitors a year and offers cabins, a swimming beach, horse rentals and more than fifty miles of trails in and around the complex — enough that a family can make a full weekend of it without repeating an activity.
What distinguishes Spooktacular from a municipal trunk-or-treat is who runs it. The programming is the work of Indiana DNR interpretive staff, which is why the schedule mixes candy and costumes with spider biology, winter plant ecology and a close-up look at the mowers, trucks and tools that keep a state park running. The event also appears to have grown year to year: an earlier listing for the same park advertised a Spooktacular weekend with details still to come, and the 2026 version fills three days with named programs from Friday night through Sunday morning. The 2026 schedule also shows small refinements — the Saturday forest walk is now called Fall in the Forest rather than the Autumn Amble of a prior listing — suggesting a staff that keeps tinkering with the formula.
For anyone planning to go, the practical shape of the weekend is simple. Campers who want to compete in the decorating contest should plan on checking in early enough to collect ballots, and anyone hoping to trick-or-treat should expect the roads through the campground to be pedestrian-only between 4 and 6 p.m. Saturday. Non-campers can attend the shelter programs, the hike, the costume contest and Sunday's spider talk; the park asks only the usual gate fee. The event runs Friday, October 23 through Sunday, October 25, 2026, at Whitewater Memorial State Park, 1418 S. State Road 101, Liberty.