just came back from Langkwai and Kuala Lumpur. I went there myself with my family total 4 persons. I took Airasia from Macau - KL - Langkwai . Eight days 7 nights in 5 stars hotels Ferry + Air + Hotels total HKD3,500 per person.
Hilton hotel at KL 2 nights
Pelangi Beach resort at Langkwai 2 nights
Langkwai Lagoon resort at Langkwai 2 nights
Mandarin Oriental Hotel at KL one night
Langkwai Lagoon Resort booked through Airasia about HKD600.- hill view including breakfast. High leg houses just beside main building. Not so attractive. Only malaysian house style . Overall Lagoon should be regarded as 4 stars when compared to Pelangi . Swimming pool small. food few choices. Eating outside not cheap. Sabah is much better.
Hilton at KL just HKD600 per night . Quite good. Mandarin Oriental needless to say is good but double price of Hilton.
大浮台 of course 可以在那裡浮潛. Quite safe. All must wear safety belts. Fish there larger than Sabah. Lunch buffet on 浮台. Acceptable. Regarding the fee. HK travel agents charge about HKD500.- additional fee if you want to go there (You must go otherwise there is no need to go to Langkwai). Actually you just walk in any local travel agents. you can only pay RM200.- simply HKD60 cheaper. (Price includes hotel pick up).
Personally I feel after playing 浮台. There is no need to join the islands hopping. Not so attractive.
HK to/from Macau by ferry per person HKD300.-
Macau to/from KL by Airasia per person all in HKD1500
KL to/from Langkwai by Airasia per person HKD500.-
Therefore money spent on transportation total 2300
Hotels except one booked via internet
1 room 2 nights 5 stars hotel Hilton at KL about HKD600.- per night
1 room 2 nights 5 stars hotel Pelangi Beach Resort Langkwai about HKD1,100 per night (this one booked via Wing On Travel - A mistake as later I found out I could get one via Airasia only about HKD900.- incl breakfast. I wasted HKD600 more )
1 room 2 nights 5 stars hotel Langkwai Lagoon Resort about HKD600- via Airasia
1 room 1 night 5 stars hotel Mandarin Oriental at KL about HKD1100
Therefore total air + hotels per person about 3,700 (not 3,500). In doing so avoided all surcharges and tips
Seafood not commonded , Quite expensive if I want a more OK restaurant. I tried 2 meals of seafood. Seafood fresh and tasted also good. Prawns about RM12 .- per 100g . Not cheap. Outside I suggest cheap meals in Langkwai Parade or 萬順 plaza.