Cherbourg (extérieur)
Neptun covers Cherbourg (extérieur) (France) through the CANDHIS (Cerema) network. One GET request returns its readings as JSON — in the same shape as every other network Neptun serves, so you write the parsing once.
Source: CANDHIS (Cerema) · Position: 49.6941, -1.6214
Request
curl -H "Authorization: Bearer mapi_YOUR_KEY" \
"https://neptun.marine-api.com/v1/levels?lat=49.6941&lon=-1.6214&radius=5"