little bit further north
Banner Peak with spectacular views of the Minarets/Ritter range and Ansel Adams Wilderness

day 1 Agnew Meadow to west end of Thousand Island Lake

day 2 up to North Glacier Pass/Lake Catherine/west glacier (with and without crampons) to Ritter-Banner col, then turn left final 900 feet to Banner summit. Back to camp. glacier is slushy in warmer afternoon and fun to swoosh down even with the suncups.

day 3 - return to Agnew via High trail/PCT, or JMT

not long enough? add Mt Ritter, but you go from class 2 to 3.