On August 20, the pool opens its doors to dogs and their owners for Paws for a Dip. This event allows friendly dogs to get in the water to swim and play. The fee is $5 per dog and one adult human companion, with $1 for each additional human. (Children ages 12 and under are free.) Proof of current pet vaccinations is required upon entry. No human swimming or unsupervised children allowed. For more information go to www.cityofthornton.net/festivals-events.