From Watford Junction train to Euston Underground Station, Tube to Finsbury Park Underground Station, then Tube to Wood Green Underground Station. 32 min £9. From Watford, Beechen Grove line 142 bus to Edgware then line 221 bus to Wood Green, Park Avenue Wood Green. 1 h 40 min £3. From Watford taxi to Wood Green. 23 min £75. From Watford drive to Wood Green. 23 min £3.