6-Bedroom Hot Tub Farmhouse in Westbury-on-Severn

Gloucester Cathedral is one of Britain's greatest buildings, with a history stretching back to around 679. Inside you can see the giant pillars of the Norman Nave, intricate fan vaulting (a style invented here in the 1300s) and the grand tomb of Edward II.

Tip: Well-behaved dogs are welcome Monday to Saturday, but only assistance dogs are allowed on Sundays, in the Lady Chapel and on guided tours.

Puzzlewood is an ancient woodland site near Coleford in the Forest of Dean, covering 14 acres. Over a mile of pathways, laid down in the early 19th century, wind through strange rock formations, secret caves and ancient trees. The paths make a confusing maze, so expect to take a few wrong turns.

Goodrich Castle is a ruined medieval fortress on a rocky sandstone outcrop above the River Wye, near Ross-on-Wye. Begun after the Norman Conquest, it grew into a stone castle with a square keep, big corner towers and a gatehouse with a barbican. William Wordsworth called it the "noblest ruin in Herefordshire".

Tip: Book advance tickets online through English Heritage, and pick up the family game from the ticket office when you arrive.

Chepstow Castle stretches along a limestone cliff above the River Wye. Building began in 1067 under William fitz Osbern, a close friend of William the Conqueror, and it is the oldest surviving post-Roman stone fortification in Britain. Over the centuries it passed to powerful figures such as William Marshal and Roger Bigod, each of whom left their mark.

Tip: Book online to save 5%. The main path is a steep slope and the steps can be uneven or slippery when wet, so wear sturdy shoes.

Eastnor Castle is a 19th-century mock castle in Herefordshire, built between 1811 and 1820 to the designs of Robert Smirke, later the main architect of the British Museum. It was made to look like one of the medieval castles guarding the Welsh borders, and it is still a private home, with tours open to the public in certain months of the year.

Tip: The castle is only open for tours in certain months, so check before you set off.

The Jet Age Museum sits on the edge of Gloucestershire Airport, between Gloucester and Cheltenham. It tells the story of the county's aviation, from early flight to the birth of the jet age, with aircraft, engines, models and artefacts. Much of the focus is on the Gloster Aircraft Company and the development of the jet engine by Sir Frank Whittle.

Tip: Timed tickets for the Vulcan and Trident cockpits are free from the desk by the hangar doors, so book them as soon as you arrive.

Bristol Zoo Project is a wildlife conservation park in South Gloucestershire, run by Bristol Zoological Society. It covers a large site, and its areas are designed to link ecosystems and conservation programmes around the world. Current areas include Bear Wood, Benoué National Park and Discover Madagascar.

Clearwell Caves is a natural cave system on the edge of the Royal Forest of Dean, mined for iron ore and ochre for thousands of years. Ten well-lit chambers are open to visitors, with displays throughout and a small museum. You can still meet Freeminers here, and the caves still produce ochre for artists' paints.

Tip: Book online and check the booking calendar first, as the caves only open on the dates shown. Parking is free.