By Air:

Daily flights from Bangkok. Check: Air Asia, Thai Airways, Nok air, Lion air, Bangkok Airway and Thai Smile Air for updated rate and schedules.
http://www.airasia.com
http://www.thaiairways.com
http://www.nokair.com
http://www.lionairthai.com
http://www.bangkokair.com
http://www.thaismileair.com

Ferry Service:

From Krabi International Airport take Airport Limousine to Krabi pier (Baht 250 per passenger) Tell driver to drop off at New Pier (Jirad Pier). Ride takes 25-30 minutes. Check updated schedules at http://www.kohjumonline.com/ or http://www.tigerlinetravel.com

Chartered Longtail Boat:

Alternatively you can hire Limousine to Ban Lam Kruad. Turn right at Ban Nhua Klong intersection about 4 Kms. North of the Airport (THB 1,000). Go all the way to the end of the route approximately 35 kms. You will see Ban Lam Kruad Pier. Charter a long tail boat (approximately Thb 1,500). Ask boat man to drop you off at Joy Bungalow, Jum Island. Joy can arrange pick up from airport and hire long tail boat, please call +66 89 920 2443

Coach:

Coaches leave Bangkok for Krabi daily between 1600 - 1730 hours.
VIP Coach cost Baht 850 for one way ticket per person.
Regular coach cost Thb.600-Thb.1,000 for one way ticket
You will reach Krabi around 0530 - 0600 hours.
Take Two rows seats Taxi (Pick up truck taxi) or chartered taxi to Krabi New Pier (Jirad Pier).
Ride takes 20 minutes

On return, coaches leave Krabi 1600-1730 arrive Bangkok before 0600 Hours.

Shuttle Boat to Jum Island from Krabi New Pier:

Shuttle boats operate between Krabi and Lanta Island daily at 11.00 and 13.00 hours during travel season (October - April). Check updated schedule which is not fixed from year to year

It will stop at Jum Island to let passengers off. Once at Northern part of the Island and again At southern part of the Island. Joy is situated in the Southern part of the Island or second stop between Krabi and Koh Lanta.

Tell boat people you want to go to Jum Island / Joy Bungalow. 450 Baht for foreigners, one way. Boat ride takes 1 hours and 30 minutes.

When boat stops at Jum Island a long tail boat from Joy Bungalow will come out to transfer passengers on to the beach in front of Joy Bungalow. Look for Joy long tail boat to board.

On Return trip. Same boat leaves Jum Island at 0900 and 1300 hours daily. Ticket can be purchased at the pier with no reservation required and also at Joy Bungalow on return trip at no additional charge.