Each summer Seattle holds the Seafair festival that culminates in a big air show and hyperboat races. Leading up to that final weekend they always hold Fleet Week and the Parade of Ships (starts August 1st). This year ships from the US Navy, US Coast Guard and Canadian Navy participated in Fleet Week (many of which you could also tour aboard).
US Navy guided-missile cruiser USS Bunker Hill (CG 52)
US Navy guided-missile destroyer USS Halsey (DDG 97)
US Navy amphibious transport dock ship USS New Orleans (LPD 18)
Coast Guard Cutter USCGC Stratton (WMSL-752)
Canadian Navy coastal patrol boats HMCS Nanaimo (MM 702) and Edmonton (MM 703)
Canadian Navy sailing training yacht HMCS Oriole
Also along with other ships a fire fighting tug boat too!
USS Bunker Hill
USS New Orleans