There are only a handful few operators in the area and I always use Peter.
Getting there is NOT that straight forward I am afraid and probably the only reason why so few divers make it there. But it does reward handsomely to those with determination.
Manila:
Fly to Tacloban and either by public or private to the resort. Please do obtain all the necessary information if decide to travel by public bus/van.
Cebu City:
Cebu to Leyte: 2019 Boat Schedule and Fare Rates -
Hilongos is the nearest entry point for Southern Leyte. Maasin is even closer but not too sure about the latest ferry schedule.
Check with the dive resort for the up-date.