When to book, and what happens if it blows a gale
July and August: book ahead. Zodiac departures carry a fraction
of the passengers an amphibian does and sell out days in advance in peak weeks.
May, September, October: walk-ups are usually fine, but a booking
still means you are not queuing outdoors in horizontal rain waiting to find out.
Cancellations: tours are called off for wind and sea state more
often than visitors expect, sometimes on an hour's notice. Operators refund
weather cancellations, but they will not refund you for arriving late because the
drive from Reykjavík took longer than you planned. Build in slack.
Booking through a platform generally gets you free cancellation
up to 24 hours ahead, which is worth having on a coast where the forecast changes
daily. Book direct with the operator and you are on their terms instead.