Chalong Bay in on the Eastern side of the island. While Kata, Karon and Patong is on the Western side.I do want to dive there some but it's more about getting away, seeing different things and different culture, it's amazing how small an island can become and with the Covid thing, how trapped we feel. We were thinking more of the West side to stay like say Pa Tong or Karon - how far of a drive or I guess how long of a drive is it to the pier for diving? Maybe we have to overnight in town?? I dunno but first priority is relaxing, second is diving, tenth is looking at possibly relocating.
No doubt U2 will be hiring a motor cycle for local transport but make sure you have all the right document and helmet because Police do check for them occasionally.
Best diving in Phuket is the LoB to Similan Islands.
If I have a month to spend I will split the time between Phuket and Koh Lanta.