Hiya, we (2 adults, 3 teenagers) are heading on our first cruise next July onboard Anthem of the Seas to the Norwegain Fjords. We're really excited so we've been researching into excursions for our itinerary, and the one which really takes our fancy is the Briksdal Glacier excursion in Olden; we've watched lots of videos of the Anthem cruises that visited there last summer, and we know that it's a popular excursion choice, so we're hoping to book it ASAP to avoid disappointment. However, up