Trnovo Ob Soci - Underwater River Sounds (Strange Unexpected Kicks)

Doing some underwater sound recordings and unexpected heard some strange kicks, when previewing the sounds underwater. Nice underwater sounds were recorded with kicks. No idea what it was kicking to the stones or wooden poles underwater. Equipment Used: TASCAM DR100-MKIII AQ H2a XLR Hydrophone It was a hot sunny day in the summer, but close to the river the temperature changed on my skin because of the river temperature. Nice emerald Soca river!