The little known Lewes day ticket or Lewes Rover, which entitles you to travel on all buses in Lewes. The boundaries are Malling (Stonham Cottages), Nevill Crescent, The Stanley Turner and Hope in the Valley. The whole of the Nevill, Malling and Winterbourne Estates are included.
The price in 2019 was £3.60 for the day, £14.50 for the week and you can buy the ticket on the bus. There are no child fares. (source Compass Travel)