The place name Nusa Dua can be used in two ways: either it can refer to the entire eastern side of the Bukit Peninsula at the southern tip of Bali, or it can refer to the purpose-built, safe and rather sterile tourist enclave (Kawasan Pariwisata, quite literally Tourism District) at the southeast side of this peninsula.
As well as a host of luxury hotels, Nusa Dua is home to the most popular golf course in Bali and the main convention centre on the island.
Nusa Dua understandably gets a lot of bad press amongst travelers as it is so artificial and sanitised. That does not change the fact though that the beaches here are glorious – white sand, deep, long and safe for swimming. The public beach at Geger is the best to head to if you are not staying at Nusa Dua. This is also home to one of the best museums in Bali. The fact that it is nearly always empty is testament that most visitors who stay here in the least Balinese part of the island, are not unsurprisingly not terribly interested in learning much about Bali.
The Nusa Dua enclave has three manned gates and everyone entering is subject to a security search. This can have a slightly claustrophobic effect, and only contributes further to the impression that you are in an artificial location.
Pantai Geger (Geger Beach). This is the public beach in Nusa Dua. This splendid white sand beach at the western edge of the enclave retains lots of the character that is missing in the sanitised Nusa Dua resort zone. Generally safe for swimming and some beach side warungs. Head westwards out of the Nusa Dua enclave passing the golf course and then the St Regis Hotel (on your left). Shortly after the St Regis, take the first turning left towards to the beach and procerd to the Pantai Geger car park.
Many companies in Nusa Dua offer water sports activities (banana boat, parasailing, jetski, diving, flying fish, etc). You can book directly on the beach at Nusa Dua or Tanjung Benoa, or have your hotel organise for you. All the operators work together to ensure that there is very little (if any) price difference. Expect to pay about US$25-30 for most activities.