We were bought an indoor sky diving experience as a wedding gift but never got round to using it so I upgraded our voucher to do this trip instead for my hubby's birthday.
We were offered jackets but as it was a warm day, declined them. We didn't get wet although it was a little chilly once we were out in the open. Life vests are a must and nice to see the staff checking that they were tight enough.
Definitely a fun way of seeing the sights without spending an hour travelling slowly up the Thames. Not sure we got the most informative guide as he did point things out but didn't seem that enthusiastic.
Once we'd cleared the river police, the skipper let the throttle go. We had 2 young boys on ours and whilst I assume that's as fast they go, hubby did say 'shame we didn't go faster!' We bounced around, went 45 degrees onto our side and really enjoyed it.
Not sure we could justify the cost to do it again but for those who don't enjoy 'boring' trips, worth the money to have a good giggle.