Body of bushwalker found on Central Coast

A body found in bushland on NSW's Central Coast is believed to be a missing 78-year-old American tourist.

Authorities found the body on Saturday after an extensive multi-agency search involving police dogs and rescue helicopters in bushland between Pearl Beach and Patonga.

Police spotted the body from the air and it was then retrieved by ground crews.

The body, which has not been formally identified, is believed to be a missing woman in her late 70s who was visiting from the US.

Police were notified of the missing bushwalker on Friday evening.

The search began immediately and the body was found early on Saturday morning.