Come out of the heat and cool off at one of 6 Washington DC waterparks! 6 Washington DC Waterparks #1 The Water Mine Family Swimming Hole The Water Mine Family Swimming Hole is our family favorite! Enjoy water slides for all ages. Toddlers can have fun in the zero entry water play areas and mini slides while big kids (up to about age 12) can have a blast cruising the lazy river and shooting down big kid water slides. I LOVE that I can take my 6, 9, and almost 12 year old children to The Water Mine and everyone has fun! I also love that I can station myself in multiple areas around the water p... read more