Understand
Nusa Lembongan is approximately 8 square km in size, and is one of three neighbouring islands, the others being much larger Nusa Penida and tiny Nusa Ceningan also covered by this article. The three islands are separated from Bali by the Badung Strait. Some visitors may find Nusa Lembongan a little slow after the pace of South Bali.
Many areas around the island are good for diving and snorkeling, with abundant marine life and healthly coral. Surfing can get a bit crowded, but the waves are good. There are several white sand beaches away from the main centres which are virtually never crowded. There is a flourishing and well established seaweed farming industry here, and many visitors find it interesting to learn about this.
Climate
The climate of Nusa Lembongan is similar to neighbouring 'mainland' Bali, but it is noticeably drier here, particularly in the period of May to September. If there is a time to avoid, it would be the height of the rainy season in January and February.
Culture
The local Lembonganese are Hindu and visitors will notice little or no difference from the prevailing culture on the Bali mainland.