Twenty thousand tickets sold in advance in just a month. How many major London attractions would envy that? Especially as what tourists are visiting is essentially a building site.
The first tours of the empty Olympic Park started in Stratford with coach loads of trippers taking in spectacular views of the London skyline from the 80 metre high Orbit.
They also saw less exciting sights of building work under way to transform the 2012 site into a public park which will begin to reopen in the summer.
A thousand people a day will take the tour on weekends and school holidays; thirty thousand more tickets are being released with more on standby if the demand grows even more.
Priced at £15 for adults with family tickets available,bookings indicate that there is still great interest, even affection for the park.