text: This isn't a NCN cycleway although it is really nice. Route 63 does go south right to the Nene Park entrance.
  https://www.mapillary.com/app/?lat=52.565720152687035&lng=-0.30180971612223395&z=17&pKey=y_7Ld1_U8NiuLha_8HCqvA&focus=photo&x=0.4480993692639559&y=0.5120432092060494&zoom=1.1889035667107