Getting to Tulamben can be tricky and expensive. Bali doesn’t really have a public transit options so you will have to hire a private drivers to take you. Of course, the further you have to go the more expensive the cost, so try to plan your visit to Tulamben accordingly.
Tip: If you use the same driver multiple times they are more likely to give you a deal. When bartering ask them if they would be interested in the return trip as well and use that as a bargaining chip; because it’s a bigger and more expensive trip, most drivers will want the job.