Heidi's Alps

5/4/2007 12:40 PM PDT
"The Hills" starlet Heidi Montag took her brand new alps out for a test drive on a beach near L.A. yesterday. Yodelicious!

Heidi's hills nearly spilled out of her pink floral bikini as she frolicked in the chilly surf with boyfriend Spencer Pratt ... who later went mountain climbing.