Go onto the Royal Caribbean web site and look up your cruise. You will see those ports which are going to be "Anchor" ports of call ie. the tenders are used to get you ashore. Alternatively wait until you have the booking confirmed by the agent, that will also show "Anchor" ports Neil Dow.
Our family too, is booked on Navigator 16-26 Oct for Canaries. First cruise! Would appreciate knowledge of any replies you get, especially with hints/tips to make holiday more enjoyable! Many thanks - best wishes Christina firstname.lastname@example.org.