There are a number of travel agents who specialise in astronomical holidays and tours, ranging from Northern Lights Tours, Meteor watches, Cruises and Total Solar Eclipses.
For those who do not want full tours and would like somewhere to visit while on holiday, or take a holiday where they can do astronomy but remain self-sufficient, there are quite a number of options available.
These are the ones I know about. If I have missed any off this list, let me know and I will add them.
If there are any mistakes, or details have changed, also let me know so I can amend the entry.
These are listed alphabetically by country.
They are not in any way a personal recommendation either as I have not visited most of them.
United Kingdom.
Go Stargazing also have a list of stargazing-friendly accommodation across the UK.
This should also help you find your perfect dark sky location for your next stargazing break, including dark sky sites, observatories and public stargazing events.
https://gostargazing.co.uk/stay-gaze
Astro Adventures.
Located in North Devon, this resort is run on a bed & breakfast basis.
Observatories and telescopes that are available free of charge if you are staying.
www.astroadventures.co.uk
AstroVentures.
Based at the Dark Sky Discovery Observatory at the Battlesteads Hotel in Wark and at various other hotel, camping and glamping sites around Northumberland, AstroVentures deliver stargazing sessions, astrophotography workshops, and astronomy activities to suit anyone from the absolute beginner to the professional. Bespoke individual stargazing sessions are also available and AstroVentures regularly delivers workshops to schools, girl guides, scouts, cubs and beavers in the region.
http://www.astro.ventures
Eddington Lodge.
Located in North Cornwall, offer self-catering holidays and short breaks.
Have observation pods as well as a fully equipped observatory.
www.eddington-lodge.co.uk
Galloway Astronomy Centre.
Bed & Breakfast accommodation located in The Dark Sky Park area in the Galloway Forest National Park, Dumfries, Scotland.
A range of astronomical equipment is available.
www.gallowayastro.com/index.htm
Northumberland International Dark Sky Park / Kielder Observatory.
Various accommodation types available around the park.
www.visitnorthumberland.com/darkskies/experiences
The Kielder Observatory holds a series of events throughout the year.
Kielder Observatory.org
Europe.
Astrofarm.
Located in the Southwest of France alongside a national park with dark skies.
http://astrofarmfrance.com/
Centro de Observação Astronómica no Algarve (COAA).
Located in The Algarve in Portugal, views and tours through observatories and telescopes can be organised for a fee, but are unfortunately no longer taking staying guests.
www.coaa.co.uk
Dark Skies Tenerife.
Organises stargazing tours in Tenerife up the mountain to observe and image in very dark skies of Parque nacional del Teide.
www.darkskiestenerife.co.uk
Les Granges, France.
Traditional Provence-style farmhouse for rent with all astronomical telescopes and imaging equipment available to use.
www.sunstarfrance.com
United States.
Arizona Sky Village.
A holiday resort set up by the renowned astrophotographer Jack Newton, actively maintaining their nice dark skies in Arizona.
Both accommodation and telescopes are available for rent.
www.arizonaskyvillage.co.uk