ɐ nˈæɹoʊ ɡˈeɪdʒ ɹˈeɪlweɪ, ðə ɹˈuːɪslˌɪp lˈaɪdoʊ ɹˈeɪlweɪ wʌz ˈoʊpənd ɪn nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi fˈaɪv, ænd nˈaʊ ɹˈʌnz ɐbˌaʊt tˈuː θˈɜːdz ʌvðə dˈɪstəns ɚɹˈaʊnd ðə ɹˈɛzɚvwˌɑːɹ.
A narrow gauge railway, the Ruislip Lido Railway was opened in 1945, and now runs about two thirds of the distance around the reservoir.