DES MOINES, Iowa (AP) — Iowa officials are reminding residents that time is running out to reserve a campsite for the upcoming Labor Day weekend. The state Department of Natural Resources say campers must make their reservation no later than Wednesday if they want that a campsite with electricity at an Iowa state park. Campers can register online.

Campers who don’t register should arrive as early as possible to claim a campsite on a first-come, first served basis. Officials say flexible campers still have a few options available.