Obrigado! Vou fazer tudo que consigo para continuar.
Hey sorry I didn’t get back to you right away. But your question prompted me to write a quick guide to buses, rental cars and other modes of transportation in Iceland.
Hope it answers your questions. And yes the buses in Iceland are reliable. The main reason they occasionally are delayed is both a blessing and a problem. Since they don’t count the seats on the bus before they sell tickets, it can be full. What they then do is find another bus. This sometimes causes delays of 30m or so. But the plus side is that you can buy a ticket right up to the departure.
To get to Vík, just go down to the BSÍ bus terminal in downtown Reykjavík and buy your ticket there. There are also all sorts of daytours from Reykjavík that go to Vík fx.