You telephone Saga & request Pre-Registration (state the year wanted) & pay £90 per person which is credited against the booking or refunded if you decline. Saga E-Mail out the programme, it is usually out in 2 parts Jan-March & April -December. In date order of pre-registration Saga then ring you. For April- December 2024 the E-Mail was sent out early March with a telecon about 10 days later & the programme going on sale to the General Public the first week of April.