Pre-book or onboard shore excursions?

Is there a price difference between pre-booking your shore excursions before boarding versus booking onboard the ship?

We sail in 9 days and are wondering if we need to go ahead and book what we think we want and then cancel on board depending on how my 98 year old grandmother is feeling or wait until we are onboard?

Same price, I book when on the ship.

The price doesn't change. The risk is what you want to do may be sold out. I think you can book through the TV in your cabin otherwise the issue was whether you wanted to spend part of your cruise standing on yet another line.

If you are living outside the U.S. it might be better to book in advance. NCL pays much better for your £/€ than your Credit Card.

Taxes might be a reason too if you start your cruise for example from Barcelona without a stop in a non EU country. NCL has to add sales taxes during the whole cruise. But I don't know anything about exceptions. I think the behind the scenes tour on EPIC was without tax. I'm sure about drinks and drink packages that there was spanish V. A. T. all the time. But I bought the soda package in advance without tax.

In the past we have lost out on excursions because they were sold out on the ship. So we have learned that if theres something we really want to do, it gets booked ahead.

As soon as people are able to wait in line at the excursion desk, there is a line and the more popular excursions go fast.