Certainly! Travelling across Bristol, Bath, Exeter, and Plymouth is a unique way to experience the richness of England. Here are some travel tips to make your journey memorable:

Best Time to Visit:
The best time to visit these cities in England is during late spring (May to June) when the weather is mild and comfortable. Summer (July to August) is also a good time, but it might be crowded with tourists.

Route and Accessibility:
All four cities are well-connected by train and bus services. You can start your journey from Bristol, then head to Bath, Exeter, and finish at Plymouth. Self-driving is another excellent option if you are comfortable driving on the left side.

Altitude and Acclimatization:
These cities are at sea-level, so altitude sickness shouldn't be a concern here.

Accommodation and Booking:
Hotels, guest houses, and vacation rentals are plentiful in these cities. However, it's advised to book in advance, especially during peak tourist season.

Clothing and Essentials:
Dress in layers as weather in England can be quite changeable. Comfortable shoes are a must if you're planning to do a lot of walking. Don’t forget to carry an umbrella or raincoat, as showers are frequent in England.

Health and Safety:
England is generally a safe country to travel. However, it's always advisable to have travel insurance in case of any health issues or emergencies. A basic first aid kit could also be useful during your trip.

Local Etiquette and Respect:
British people are polite, so always remember the basic etiquettes like saying please, thank you, and sorry. Avoid talking loudly in public places or on public transport.

Enjoy your trip! Take your time to explore the rich history, architecture and beautiful landscapes that this part of England offers!