The following links are to a few sample routes:
65km (climbing 803m): Blackrock College to Newtownmountkennedy
61km (climbing ~350m): Blackrock College to Malahide via Howth Hill
You will need to become a member of Strava (free to join) to view the remaining routes, but we will build out more detail over time:
28km (climbing 321m): Enniskerry
47km (climbing 124m): Howth (no hill)
49km (climbing 789m): Glencullen, Featherbeds, E’kerry, Scalp, Stepaside
50.4km (climbing 565m): Vico & Greystones
57km (climbing 1,026m): Glencullen, Glencree, Featherbeds; Crone Wood; E’kerry, Scalp, Glencullen
65km (climbing 348m): Manahide, Howth (back over hill)
65km (climbing 1,099m): Bohernabreena; Feather Beds; Crone Wood; E’kerry; Glencullen
75km (climbing 1,210m): Glencullen, Sally Gap, Roundwood, Enniskerry
92km (climbing 1,592): Feather Beds; Sally Gap; Laragh; Enniskerry; Glencullen