National Park Mystery Photo 21 Revealed: Congaree National Park "Skeeter Meter"
While many national parks rightfully can claim miserable concentrations of ravenous mosquitoes in summer months, Congaree National Park actually offers visitors this tongue-in-cheek "skeeter meter" for gauging just how bad things are in the swamps.
Of course, when you look at the companion photo of the park's swamps, it shouldn't come as a surprise that park officials look out for their visitors when it comes to biting bugs.
Contributing writer Danny Bernstein took these photos during a recent trek to Congaree National Park. She visited in March, before the bugs were particularly nasty.