Pick your preferred language. We speak English and 42 other languages.
Sanur and Sindhu beach is quite crowded and people throwing trash everywhere. However, if you just follow the trail to the west, you will eventually arrive at the beach owned by the hotels, which is more private and cleaner.
Stay at the Prama Sanur Beach Hotel, watch the tides as there is no water at low tide.
The nearest dive spot is nusa penida where you take a 45minutes speed boat ride from sanur beach to the dive spot. There are many dive operators around sanur and we chose bali aqua. Nusa penida is a well known dive spot for manta rays and the elusive mola-molas/sunfish when it's migrating season (btw august-October). Besides that, the many dive operators located there do offer full day all inclusive dive packages to other dive spots in and around bali (tulamben, Padang bai, etc...)