Don't be afraid of the name. It's a beautiful and busy beach, perfect for hours of swimming and glorious sunbathing.
More information at puertovallarta.net http://www.puertovallarta.net/what_to_do/los-muertos-beach.php
Address 1 Calle Almendro, Puerto Vallarta 48399, Mexico
Coordinates 20°35'52.194" N -105°14'22.373" E