Coleto Creek Reservoir and Park, Texas - Rates, Dates, Payment methotds, Discounts RATES, DATES, DISCOUNTS, PAYMENT METHODS: The park is open from 4:00 AM to Midnight, 365 days each year. Campsites vary in price from $26. 00 to $41. 00 depending on site type, and season. Senior, weekly, and monthly rate discounts are available from October 1 to March 31 each year. The park accepts cash, checks, Visa, Master Card, and Discover.