We just walked into the town which took about 15 mins. If its your first time take the cablecar up to the top and get the toboggan ride back down a part to the taxi. Have a nice beer and check your emails then back to the ship. this should take about 3-4 hours.
You really need the bus for this one. aricife is a bit tatty but lovely with it, hard to explain, some nice walks along the harbour areas and a lively shopping / market part by the church. watch out for the bell ringer. he sits next to the bell and swings the clapper. he must be the local nutcase.