We hired the Aditya hotel driver to take us to Hero sports in Singaraja, then onward to tulamben. Regular rate was 250,000 for the trip, but I told him I wouldn’t pay more than 150,000 (since transport is easy to obtain on the street), and he got the hotel management to accept it. This is for 5 people plus baggage for a 2.5 hour trip + 2 hours looking at each hotel. Not cheap for Bali, but it’s a good car and a known driver.
Stopped at Hero Sports in Singaraja, a dingy Chinese-run sports store, crammed with all sorts of different western sports equipment. I bought wayan a mask and snorkel, the mask wasn’t bad, but the snorkel was pretty darn cheap looking.