Bank Holiday Sunday marks the launch of Immersion’s eagerly anticipated river cruise. Clamber board, down an ice cold vodka shot and a glass of prosecco for good measure. It’s time to party. As the 98ft vessel glides along the Thames with the tunes pumping, you can watch the world go by from the viewing deck. Drink and dance, revel and rock out. It’s your night and you can celebrate it any which way you like. This is the life. Over 18s only. Boat leaves at 5:30pm.