Easy loop from Brickfields Meadow to Lloyd Park. No main roads other than crossings, all arranged to work with the area's slightly confusing one way systems.
From the southern end of the route (Lloyd Park) you can get on the NCN232 "Connect2" route which is a nice way in to Central Croydon via Park Hill Park.
From the northern point (Brickfields Meadow) it's a short hop across Portland Road to the Albert Road LTN and its onward connections to South Norwood Country Park (Waterlink Way) and Crystal Palace via Regina, Lancaster & Auckland etc.