We are arriving in Gatwick on Sunday 8th June. We will travel by train to Brighton where we have booked a B&B. We intend to travel by train to visit Portsmouth Historic Dockyard (day 1) Arundel Castle (Day 2) and Lewes Castle/Rye on (Day 3). At the moment it would appear that we could get 2 for 1 tickets for the Portsmouth Dockyards/ Lewes Castle and Ann of Cleves House. I think I may also use the 2 for 1 ticket in Brighton but have not worked out what we would like to see yet. Can someone tell me what type type of train ticket I should ask for? Should I book my tickets online before leaving Australia? I think we will be booking the 2for 1 tickets in advance. We are going back to Gatwick on Friday 13 June.