Dive Mantangale Alibuag dive resort (see resort and prices using google) for $620 USD for 7 days/ 6 nights,incl. 3 meals. day, 15 dives, lodging, transfers, etc. April- May has least rain and warm waters.
Air: [ $900, int’l and domestic; fly fom SFO to MNL; Cebu Air Pacific to CDO.
Still planning 2nd resort: at Anilao or south Mindanao; Malapasca island dive resorts also have low cost but is hard and troublesome to get there; only dive very good dive sites at very low cost.