One of the greatest half day adventures you can do on a summer vacation is river rafting. On a nice hot day cool off with the river splashing on you, get that boost of adrenaline with every rapid, and take in the scenery of Valdez while floating along the river. If you're looking for a classic river rafting adventure Lowe River through Keystone Canyon with Pangaea is right up your alley.
Alaska Guide Co. offers packrafting some mild packrafting tours around Valdez as wells as remote backcountry tours that can include some packrafting adventures.