Renting a car or motorbike gives you the freedom to explore Thailand at your own pace. There are several rental shops in the provinces where you can rent vehicles for daily or longer-term use.
The local bus service is basically songthaews running along route 4
This is one area where Phang Nga is very similar to Phuket. The taxi services tend to organise themselves into groups and run their services like a cartel. They try to discourage competition from public transport options. The bus services are therefore much more aimed at the locals than for tourists.