BAR HARBOR — The president of Bar Harbor’s College of the Atlantic is pledging to climb all 28 mountain peaks in Acadia National Park in a single day in an effort to increase alumni donations to the school.

Darron Collins was to begin his climbs at 4 a.m. today, accompanied by two students. After finishing the peaks on the east side of Mount Desert Island, they’ll swim across Somes Sound fjord to tackle the mountains on the island’s west side.

The combined height of the peaks is estimated at 22,000 feet. In all, the hikes will total 45 miles.

College officials say hiking every mountain in the park is a rite of passage for many students, but that they don’t know of anyone attempting the feat in a single day.