The world’s last working paddle steamer is returning to Kent for a series of themed cruises. The steamship, Waverley, which was built in Glasgow in 1946, will travel along the Thames from Gravesend for ‘60s cruises, nighttime sailings and more. The historic ship proved popular after embarking on trips from Gravesend to Tower Bridge last year and will return to the county from Friday, September 27. Now, visitors can enjoy beautiful views of the river on themed nights, including a Swinging Sixties Pirate Radio cruise. There will be music from Adam Knight’s ‘60s Roadshow, DJs from pirate radio st…