BURLINGTON, Vt. -
With the summer heat, some people are looking for great places to cool off.
Swimming holes are a popular option.
Dave Hajdasz is a big fan of swimming holes. In fact, he recently wrote a book about them. "Take the Plunge: An Explorer's Guide to Swimming Holes of Vermont." It has tips on the best and safest spots. Hajdasz appeared on The :30 to talk about it. Watch the video for more.
