Tom Daley and his fiance Dustin Lance Black enjoyed a thrilling date in London on Thursday (19.11.15).

Tom Daley and Dustin Lance Black

Tom Daley and Dustin Lance Black

The couple - who announced their engagement last month - joined a host of celebrities at the opening of Hyde Park Winter Wonderland, where they got an adrenaline rush on the rollercoaster.

While Tom had a huge smile on his face as they rode the rollercoaster, Dustin looked less enthused as he let out a scream.

Loved-up Tom, 21, and 41-year-old Dustin checked out the many attractions on site including the Ski Zillertal Ice Rink, Magical Ice Kingdom, Zippos Circus and Cirque Berserk, Giant Observation Wheel and Bar Ice.

Tom and Dustin - who have been dating for two years - registered their engagement in The Times newspaper last month.

The announcement read: "The engagement is announced between Tom, son of Robert and Debra Daley of Plymouth, and Lance, son of Jeff Bisch of Philadelphia and Anne Bisch of Lake Providence."

Other stars who attended the opening event included Tamara Ecclestone and her sister Petra Stunt, Donna Air, Ben Haenow, Lottie Moss and all four members of All Saints; Mel Batt, Shaznay Lewis and siblings Nicola and Natalie Appleton.

Hyde Park Winter Wonderland will remain open for six weeks and is free to enter.