Hold on tight for a Valentine treat with a difference – a train ride through the tunnel of love….

By kind permission of a pandering London Underground, the Thames Tunnel is floodlit for one night only.  Here was the World’s First Underwater Shopping Arcade. Here also at the Thames Tunnel Fancy Fair were novelty acts, sword swallowers and female acrobats, and dark places where lovers might talk until morning…..

It is perhaps the most romantic of settings.  There were dinner parties and secret meetings in the Thames Tunnel, and here Brunel romanced a famous actress.

Descend, with or without a lover, to the Grand Entrance Hall.  Listen to the secret diaries of the famous Actress who met the famous Engineer in this famous underground haunt for lovers*.  Then travel with your guide on a train through the Thames Tunnel, the Tunnel of Love.

£15 buys you a hot ticket aboard London Underground’s very own love train, a reading of a love story and secret diaries in an underground chamber, a Valentine cocktail from Midnight Apothecary in the Engine Room and a beautifully wrapped chilli chocolate brownie to warm your cockles from BBC MasterChef winner Julie Friend.

Lovers should make assignations in the entrance to the Brunel Museum 7pm, 8pm or 9pm.

Lovers must book online at www.brunel-museum.org.uk/events/valentine-special/

Bring the greatest aphrodisiac of all: Your OYSTER card!

Tour takes an hour.  After your exquisite free cocktail from the Midnight Apothecary, a cash bar is available throughout the evening in the Engine Room at the Brunel Museum.

* This romance, with a print of the Thames Tunnel Banquet, is available at the Brunel Museum, in numbered edition signed by Zoe Wanamaker (£15).