What's the best beach to go on a honeymoon?

If you are leaving the Philippines than airfare becomes a consideration. I think Cebu Pacific flies into Phuket airport and heading north of the airport are some very nice quiet beaches. A few years ago I stayed at the Holiday Inn Mai Khao. It was nice, quiet and reasonably priced. There was also a Filipino band playing at the pool, so the wife went up and sang a song.

https://www.tripadvisor.com/Hotel_R...o_Beach-Mai_Khao_Thalang_District_Phuket.html

Another local place is El Nido and now you don't need a private charter to get there as there is service from Cebu or Manila with Air Swift. I stayed at Miniloc which was very romantic. Only 1 resort on the island and over water bungalows like you see in Bora Bora. They will take you to a private beach, drop you with food and pick you up, so you have the white sand beach to yourself.

https://www.tripadvisor.com/Hotel_R...Palawan_Island_Palawan_Province_Mimaropa.html

 

For a quiet place in Thailand I'd suggest koh Lanta. Huge beach, not crowded.

For a nice but not yet too touristy island in the Philippines try Camiguin. They have a couple decent places to stay, great diving, snorkeling and hiking if you're into that.