What this company does is they pick you up 30 minutes prior to whatever departure you scheduled and drop you off at the office, where you are told to get on another bus for your tour/destination. We were picked up from our hostel 30 minutes prior to our 9am departure and dropped off right outside of their office. As I needed a ticket (my voucher was Viator), I went into the office and received my tickets. We were told to board another bus which took us to the Blue Lagoon. The driver was very helpful; he asked every single person what time we wanted to be picked up and what destination. As we were going to the airport, we were told that our luggage will be left on that particular bus so we didn't have to worry about lugging it around and focus on relaxing at the Blue Lagoon. As my flight was at 4pm, my dilemma was deciding whether to get picked up at 12noon or 2pm but I was reassured that 2pm would be fine as the airport was only 20 minutes away. I enjoyed 3 1/2 hours (as oppose to 1 1/2) at the Blue Lagoon and was dropped off at the airport with time to spare. I highly recommend this transport!