INDIANAPOLIS (WOWO): The Indiana State Parks & Reservoirs are extending their May camping discount for two extra weeks. Campers who book a new campsite reservation for two or more consecutive weeknights (Sundays through Wednesdays) through June 11 will receive one of the nights free.

To secure a reservation, you can go to Camp.IN.Gov or call (866) 622-6746. Use the promo code “MAYFREE14” when making a reservation. Reservations for camping can be made until midnight the day before arrival.

The offer expires Wednesday June 11.

This offer only applies to new reservations, and may not be used on existing reservations, or in combination with any other discount or offer. The offer does not apply to walk-in registrations.

There is a maximum of one free weeknight per reservation.