If anyone is doing any last minute recces over the second half, the yha cafe at the bottom of southease hill is another good place to get water. There is also a tap on the outside if your there before the 10am opening time.
Just 3 weeks to go now, Im as ready as ill ever be I guess.
Head up onto the downs above the town, you can climb up beachy head by the cafe or run past the university and take the old south downs way path which is far more manageable.
From there you have options such as following the seven sisters or into east dean and crowlink. Personally I would follow the south downs way past the golf course up the top and head into friston forest or onto the downs the other side of jevington.
It all depends on how far you want to go really and I may be biased here but the roads around eastbourne just cant compare when you have a national park on your doorstep.