Good Morning Terry Dactil - your homing torpedo has hit the spot. Sangley Point it is (was), now known as Danilo Atienza Air Base.
The clue in the penultimate photo was the EC-121 wingtip, they operated out of there until it closed in 1971, but Sangley was the largest USN ASW base outside of the US at the time, with at least two resident P-3 Sqns (Cubi Bay was more for things off carriers).
The event was Ex Sea Rover, an annual SEATO ASW Ex, the format of which morphed into the Fincastle Trophy ( all Sqns operating from one base rather than the then competition of an adjudicating panel looking at results from different units and stations). Hopefully with the P-8 we will re-enter this excellent competition.
Over to you TD.
PS This was our 'score':
PS - This was our 'score':