Small free National Trust car park, space for about 6 cars. Entrance is off Brambling Lane almost immediately off the A272. W3W ///nuzzling.reveal.smug
Hilly in parts, nothing too steep and most paths pretty level and flat grass or field sections. Is a raised boardwalk over marshland after about 2km. No stiles, are several kissing gates. Fields had signs about livestock but we didn't see any.
Couple of spots where you can access the river but not really a great feature here.
Poo bin in the car park
As you walk up the first fields you can see across to Woolbeding Gardens which is a National Trust property. You can see the diamond shaped greenhouse which opens up on sunny days. If you want to visit check NT website as not open every day.
The route here is a there and back route so just go for as far as you want - I went about 2.5km before turning back but you can go all the way to Midhurst which isn't much further than that.
From the car park follow the signs across the field, shortly there's a crossroads and if you go straight over then from there on it's all a single path which is well is sign posted so literally just go as far as you please.
The walk is mainly through fields, with some woodland sections. The route does follow the River Rother but mostly you don't even see it as the banks are overgrown, but there are a couple of points where you can go through the woods to get to the water which are a bit more off-road in terms of terrain.
The first couple of fields are nice an open, and think these are used for locals to exercise their dogs as was a few other people round here, but after that was very quiet and peaceful and no one else around.