By taxi
A pre-paid coupon taxi direct from the airport will cost you Rp 450,000 and takes about 3 hours.
By bus
Perama (http://www.peramatour.com) offers transportation from major tourist destinations in Bali and has a local Lovina office in Anturan. Perama shuttle buses to Lovina leave from Kuta, Sanur, Ubud, Candidasa and Padang Bai. They use mini buses without air-conditioning and the prices are more than reasonable.
By Bemo
Long distance bemos are a bit of challenge for all but the most experienced of budget traveller, but you can get to Lovina from most major towns in Bali, almost always via Singaraja.
By car
Most visitors arrive in Lovina from the south in a self-drive hire car or with a car and driver. A journey from Kuta takes about 3 hrs and from Sanur slightly less. Ubud is a 2 hour car journey over the central highland range. Many visitors from the south choose though to break their journey at Bedugul or Kintamani.