Swains Lane x2 just for fun. - Distance ~5.5 mi(8.8k) with ~705ft(214m) climb -
Start and finish at Carob Tree. Route: Dartmouth Park Hill(up), Highgate South Grove, Fitzroy Park(down), 2x Swains Lane(up), Highgate West Hill(down). Continuous running with no stops planned. Slower uphill, quicker downhill. Total 3 hills.
Carob Tree, 18:30