Hi Eve,
I had a chat to one of my colleagues and was advised that this was caused by the team running some tests for the cruise brands on our reservations system.
In terms of numbers, at the moment there are 12 travellers booked on the August date (2 men, 10 women with ages from early-50s through to early-80s)
For the September date there are 5 travellers booked, 1 man, 4 women with ages from late-50s through to late-60s.
Kindest regards,
Julia