Penang is the name of an island in the Straits of Malacca, and also of one of the states of Malaysia, located on the north-west coast of peninsular Malaysia. Penang is the second smallest state in Malaysia after Perlis, and the eighth most populous. A resident of Penang is colloquially known as a Penangite. The city Georgetown is the 2nd biggest city in Malaysia and traveller′s hub.

Langkawi is an archipelago of 99 islands in the Andaman Sea, some 30 km off the mainland coast of northwestern Malaysia. The islands are a part of Malaysia’s Kedah state, but are adjacent to the Thai border. By far the largest of the islands is the eponymous Pulau Langkawi with a population of some 45,000. The island is a declared duty-free zone.

Pasarakyat Bus Terminal

Smaller bus station in Imbi (just off Bukit Bintang) for some luxury buses to Singapore and buses to Genting Highlands. There are also a few other ticket counters of other companies for buses that leave from Puduraya.

There is no public transport to get there. Either you walk about 10-15min from Jalan Bukit Bintang or take a taxi to get there.
Location map (on Transtar Travel website)

Bus companies:
Transtar (luxury single seat, 16-seater bus to Singapore)
Go Genting Express (RM 8,50 one-way - bus and cable car)