Now is a great time to visit Zoo Knoxville, and for the next few weeks, a special deal will get you inside for only a buck.

During Zoo Knoxville's Dollar Days from Nov. 10-13, admission is only $1 with the donation of a non-perishable food item or pet food. Parking is free.

WATCH: Zoo Knoxville Gorilla cam

There's only one catch--- to keep the crowds from becoming overwhelming, only a limited number of tickets will be sold each day, and you must purchase your ticket online, starting October 31. There is a limit of six tickets per order, and no rain checks will be offered.

Once you have your advance ticket, just bring your donation with you to the gate. Tickets will not be sold at the gate during Dollar Days.

Those donations will go to help three local groups:

  • Mission of Hope is a volunteer organization providing assistance, aid and resources to those living in poverty-stricken areas in rural Appalachia. In order to help meet the increased demand of the holiday season, they are requesting donations of non-perishable food items. They are also accepting donations of new children’s toys and hygiene items.
  • Young-Williams Animal Center serves the community by providing compassionate care to animals, working to find homes for adoptable pets, providing affordable spaying and neutering services, and educational programs about animal welfare. The center is in need of dry and canned dog, puppy, cat and kitten food and new pet toys.
  • Knox PAWS matches eligible seniors with adoptable pets. Research indicates that pets improve seniors' physical, emotional, and mental health. The Knox PAWS program works with area animal shelters to match senior pets with senior citizens. PAWS is in need of dry and canned dog and cat food and new pet toys.