By
Mike Gervais/Register Staff
JUNE 3, 2013 â Yosemite National Park officials are advising visitors to exercise extreme caution when exploring the valleyâs natural beauty in the wake of two deaths over this past weekend.
According to the National Park Service, Felix Joseph Kiernan, 28, of London, England and Aleh Kalman, 19, of Sacramento, died this past weekend after the former was hit by a falling rock while climbing, and the latter was swept over one of the parkâs tallest and most popular waterfalls.