(Portland, OR)  --  Cleanup will resume today, following a large fire that damaged hundreds of vessels Sunday night and Monday morning at a marina on Hayden Island.  KGW-TV reports cleanup crews will be able to get inside the burned-out warehouse today for the first time.  Officials say about 350 boats and yachts were contained inside the Sundance Marina warehouse at the time of the blaze.  The cause of the fire hasn't yet been determined.