Good Morning!
Except for the murky water during that dive (loooooong ago) we haven't observed anything unusual.

Yes! when PG scuba diving is in it's infancy.
Puerto Galera is known to have great underwater visibility and strong underwater current. This has been frequented by divers who opt to avoid the busy underwater of Anilao, Batangas which is considered as the most popular diving spot - a mecca for beginners- due to its proximity to Metro Manila.