We are travelling with our 16 year olds and are wondering for end of April (about 8 days) what would be a better trip for that time of year.
London for 4 nights and then head out and hike via one of these: https://www.hillwalktours.com/
Or same thing Edinburgh then head out and hike via same company.

About us. We loved Greece as a family in particular Peloponnesus. Exploring ruins, being in small towns, Hiking, the archeological museum in Athens. We loved Italy. Everyone loved Rome and the museums and churches with Caravaggios etc. Also hiking in Umbria and staying in Orvietto. Loved Paris but really did NOT like Provence. It felt like a wealthy person's playground (although some great ruins). OK so that said... we like to mix up or vacations with city and then because we live in Brooklyn... also get some outdoor time.

People are so helpful on trip-planning here. Just not sure of the weather last week of April or the crowds (hard to avoid because we cannot pull our kids out of school) a good mixture of culture and nature.

Thanks

>>what would be a better trip for that time of year.<<

Honestly no way of telling. None. April can be still a wintry or lovely - or both on consecutive days. It can be warmer in Scotland or downright freezing. Same for London and the south. Same with rainfall.

If it was me -- and it isn't -- I wouldn't plan a pre-booked, set-in-stone walking trip anywhere in the UK in April. I'd just go to which ever City (London or Edinburgh) I most wanted to see and then head out to the countryside IF the weather was nice and walk to your hearts content. If the weather is dreadful the cities will hold your interest just fine. There are thousands of miles of public footpaths in the UK and you have unlimited options.

In April I'd be more inclined to do daily 'loop' walks from a town or village instead of a long distance linear walk because if the weather changes a lot you could be stuck a bit. (of course that can happen any time of year -- but April sometimes can't make up its mind if it is Winter or Spring)

April... I'd recognise that

1) The UK has thousands of miles of detailed paths you can walk on and having someone arrange it for you is frankly crazy
2) Large parts of the UK have things called Taxis that will happily take your bags to the next hotel or just come and pick you up if you are tired
3) ditto trains
4) booking.com will allow you to choose a hotel, B&B and book it day to day

April, in April you always need a plan B for the weather.

If you just want a days walk, take a train out of London and walk back, easiest along a canal or river but really is very easy.

https://www.ordnancesurvey.co.uk
https://www.walkingbritain.co.uk/
https://footpathmaps.com/

For years I've gone to the UK to walk long-distance paths, nothing I love more. Given the time you have my suggestion would be to stay in London and do walks, either around the city or a bit farther out, easily achieved by public transport, on the days that promise the best weather while you're there. That way you really can't go too wrong.

There are thousands of websites to direct you. I picked these from a google search of "london circular walks uk"
https://www.stylist.co.uk/travel/bes...-memorial/6428
27 Beautiful Country Walks Near London UK | 1 Hour Away, Hiking Guide, Nature, Maps, Circular, Long & Short Routes

And hundreds of books to take along and choose your walks as the spirit moves you.

I absolutely agree with bilboburgler that there's absolutely no reason to pay someone to tell you where to go as paths are marked well and you can decide where to go & when as you go. Walking from London serves 2 purposes, no need to move yourself & your stuff and plenty to do to keep dry on days the weather doesn't co-operate. I'd choose London over Edinburgh because of all the transport options to get you wherever you decide to walk and because I suspect you may have more good weather farther south. It's impossible to convey the enormous wealth of walking opportunities in the UK so I'd urge you to drop the idea that you need to pay for the privilege and just dive in to all the online & print information. Also check your public library as they may have guides you can borrow as you investigate the possibilities.

One last comment, do look at the Ordnance Survey maps online link given above in bilboburgler's post, no better maps in the world, for walking you'll want the 1/25,000 scale. For map lovers like me an excuse to buy an Ordnance Survey map is as good a reason for walking as any.

I forgot to mention, if you decide to walk in & around London, the Thames Path goes along its banks right through the city, impossible to get lost and you could do sections any day you have good walking weather. There are museums, galleries, markets, you name it, all along the way so you could do an itinerary of things to do as you go and combine your walking and your sightseeing. Walk it to the end, see the Thames Barrier and visit Greenwich. Or take a train out of town and walk back along the river. To Windsor or Hampton Court or Richmond and Kew Gardens, the possibilities are endless.

https://tfl.gov.uk/modes/walking/thames-path
https://www.culturecalling.com/uk/fe...path-in-london
https://www.thewanderblogger.com/wal...s-path-london/

Full disclosure - my bias is to Edinburgh, so bear that in mind. In the case of that city, one thing to consider is the availability of some terrific hill walks or hikes that can be undertaken right from the city itself. Look here, for example - https://www.visitscotland.com/destin...ee-do/walking/

You can do some fun walks in the city - Arthur's Seat and Duddingston, for example, or along the coast between Cramond and South Queensferry - https://roseberyestates.co.uk/dalmen...the-shore-walk or up into the Pentland Hills from the thatched-roof village of Swanston. Or there are trails along the Fife coast (accessed by frequent trains from Edinburgh) or in the lovely Lammermuir Hills in East Lothian.

Or you're only an hour or two from more walks - in the Trossachs, Burns country, along the castle-dotted Northumberland coast... too many options to list. I endorse Janis' suggestion to let the city choice drive the plan, and do your hiking or walking based on real-time weather forecasts. You might have warm skies and wildflowers, or horizontal rain; no way to know.

Not to counter Gardyloo's suggestions, but just to give you more idea of what you'll find along the Thames Path near London, here are some posts of mine with photos:

https://www.travelgumbo.com/blog/portmoresby-in-england

A good idea and the Thames Path goes through Oxford, too, very near the train station (and the coach station nearby).

My two favorite areas for walking other than one of the coastal paths are the Trossachs (one would need a car pretty much to get there in the first place - though there is some bus service) and the Cotswolds. One convenient from Edinburgh and the other convenient from London/Oxford.

But there are other fantastic areas -- the Borders + St Abbs Head. Northumberland. The South Coast. The Thame Path . . . and a hundred others

The Lake District. The Dales/Moors. The Peak District. are all fabulous but I'd probably not plan them for April

Really appreciate all this feedback and I am feeling this may not be the trip for April! Thank you. Going back to the drawing board.