A father uses his smartphone to photograph his child on the climbing wall at the St. Paul picnic. My Final Photo for Aug. 18, 2013.

A father uses his smartphone to photograph his child on the climbing wall at the St. Paul picnic. My Final Photo for Aug. 18, 2013.

A father uses his smartphone to photograph his child on the climbing wall at the St. Paul picnic. My Final Photo for Aug. 18, 2013.

A father uses his smartphone to photograph his child on the climbing wall at the St. Paul picnic. My Final Photo for Aug. 18, 2013.