Nothing like a floating, boat-hulled helicopter:
A CH-3E Jolly Green Giant [modified Sea King] helicopter from the 1550th Combat Crew Training Wing floats on the surface of Elephant Butte Lake as members of a Navy sea-air-land (SEAL) team approach in an inflatable boat during the joint Air Force/Navy special operations exercise Chili Flag ’90. 3/1/1990
The CH-3 (Sikorsky S-61R), which earned its stripes in Vietnam, could carry 25 combat-equipped troops, 15 litter patients for MedEvac or 5,000 pounds of cargo. They continued to be used by the Air Force and Coast Guard (HH-3F Pelican) well into the mid-1990s, even clocking 251 combat missions during Operation Desert Storm.