You most certainly can arrange the underground river tour from any guesthouse in the area. And by staying in Sabang overnight you'll go early in the morning thus beat the organized tour crowds who come from far off places. We stayed at Sabang for three nights if I recall correctly. The beach is beautiful.

Bonjour, nous avons dormi au Sheridan hôtel.

You may hire them when you book your trip for diving, they normally have different sizes to suit your needs . Hope this will help you.

Credit card are accepted. Exchange your money and pay with cash at local shops.

The village itself is tiny . No other town nearby. You’ll find local products there all very cheap. There is nothing special or unique or expensive to be bought. All are just meters away from your lodging. We really liked the nature and beach there. Enjoy it!

Hi Gienah, Honday bay is on the complete opposite side of the island. It might not look that far on the map, but it is many hours to travel by taxi or van to get there from Sabang.

No need to book in advance. Im staying here as I'm writing this answer. You can walk out onto the beach and book with one of the tour guides there. when you walk out from the sheridan facing the beach turn to your right walk 20 feet and you'll see a small tour guide hut. 1200php for the underground tour and you can only book one day in advance. Its perfect. Buy your lunch after the tour on the beach. You'll meet at 8am walk to the dock which is 5min away take a 15min boat ride which is undercover so no need for sunblock. Take the tour and you'll be back by about 10:30am/11am If you choose to walk back through the jungle trail it costs 200php and takes about 2hrs+