Tickets cost £8 for children, £17 for adults (£15 if you book online). Valid for 24 hours, they include unlimited open-top double-decker bus rides, a river cruise, and two other walks, "Rock 'n' Roll" and "Royal Tour". (020-7233 9533; ). The event is free if taken with a "Meet the Scientist" tour of Our Dynamic Earth from 10.30am-12.30pm. There will also be a mask and finger puppet workshop on these days at 1pm (£1 for children).Our Dynamic Earth, Holyrood Road, Edinburgh EH8 8AS (0131 550 7800, ) Open daily from 10am-5pm. 9 The other world wide web Encounter with SpidermanAs part of the Edinburgh International Science Festival, Our Dynamic Earth is staging a number of events, including the Spiderman encounter from 5-9 and 12-13 April.

The tour takes place from 3pm-4.30pm and participants will come face to face with tarantulas, giant cockroaches and stick insects. Admission is free Mondays-Fridays and at weekends, and on bank holidays is £2 for adults, £1 for children under 16 and concessions, and free for under-fives. 8 Children of the revolution Science and industry Visit the new Discoveries That Changed the World gallery at the Museum of Science and Industry in Manchester, which celebrates some of Manchester's most eminent scientists, such as chemist John Dalton (1766-1844) and James Joule (1818-1889), a brewer and physicist.Museum of Science and Industry in Manchester, Liverpool Road, Manchester (0161 832 2244, .uk) Open daily from 10am-5pm, admission is free. 7 Clowning around at the castle The Big Top EventRoll up for Nottingham Castle's Big Top event, which celebrates the new circus-themed Children's Gallery, open from now until next spring. Family events such as circus performances are planned for Big Top day on 7 April. There are arts and circus activities for children in the Big Top Reading Tent while the Children's Gallery will display paintings of fun fairs and acrobats.Nottingham Castle, Lenten Road, Nottingham (0115 915 3700; ).The Castle and Children's Gallery are open daily from 10am-5pm. Visitors can buy a museum pass that allows entry into the 10 Ironbridge Gorge Museums for £13.25 per adult, £8.75 per child or full-time student, and £11.50 for over-60s A family ticket for two adults and two children costs £42 The pass lasts indefinitely All museums are open daily from 10am-5pm.

Other egg-related activities will include egg decorating and egg rolling.Blists Hill Victorian Town, Legges Way, Madeley, Telford (01952 435900; .uk).Other museums in the area such as the Coalport China Museum and Enginuity will also be staging Easter events. He lived in the Warwick Castle's Watergate Tower nearly 400 years ago, but was murdered by a servant and haunts what is now called Ghost Tower. Dramatic and ghoulish re-enactments take place throughout Easter, as well as a medieval banquet with entertainment.Warwick Castle, Warwick (01926 495421; ).Open daily 10am-6pm. Admission: £14.50 for adults, £8.75 for children (4-16), £39 for a family ticket (two adults, two children) Ghosts Alive is £2 extra. 3 Eggs-iting times, naturally Wildlife safariAt the Natural History Museum in London, take part in a "mini-beast safari", a guided walk for children aged 7-11 around the Wildlife Garden, which includes oak woodland, lowland heath, pond and hedgerow, on 4, 10, 11, 17 and 18 April at 12.30pm and 3pm. Admission is £9.99 for adults, £9.49 for children aged two-12, £8.99 for senior citizens and £36.45 for a family ticket (two adults and two children).