To get to Hertsmere from London, take the M1 north and exit at Junction 4 for Elstree. Follow signs for Hertsmere.
From St Albans, take the A5183 south and then turn right onto the A414 towards Hatfield. Continue on the A414 until you reach the Borehamwood exit for Hertsmere.
If you are travelling by rail, take the train to Elstree & Borehamwood station. From there, it is just a short walk to Hertsmere.
If you are coming from Watford, take the Overground to Bushey station and then switch to the bus or take a taxi to Hertsmere.
If you are coming from elsewhere in Hertfordshire, take the nearest major road and follow signs for Hertsmere.