Some tour operators that I used were www.goecco.com and www.extremeiceland.is, both operators offer comparable trips but goecco offers smaller and / or private tours. I enjoyed the tours from both operators very much.
For Silfra snorkeling, I used Adventure Vikings as they have the option for wetsuits vs. just dry suits HOWEVER, they don't have a mobile changing station like another tour operator that I saw (I think dive.is) and that was a bit of a challenge. If you want to be able to free dive in Silfra, choose Adventure Vikings and the wetsuit option - an amazing experience! 10 months ago
My favorite country is Iceland. Most of the great tourist places are located there. The Thingvellir national park, waterfalls, Geysir Hot Spring Golden Circle and Northern lights are the attractive tourist places for all travelers. There are so many travel companies are available to help travelers. Go to joy Iceland is a very famous travel company in Iceland. When I had visited Iceland, this company provided me good service. 22 days ago