First post. Thanks for the warnings re Viator's bookings. Just wanted to book the Tallinn HOHO bus and found I could not enter the area code for our Australian number. It does not accept the following:
+618 or 618 or 08 or 8 for Western Australia, which is 8 and 61 is Oz.
Ringing the Aussie number means a voice tells you the wait is more than 10 minutes!
Entering a web page problem leads to "Page cannot be found" problem, but by the looks I will not book with them anyway and use Tripadvisor instead.
Will use this forum to find the Tallinn HOHO operator for pre-booking or just do it once I am off the ship, Regal Princess 7 May.