Going on a Buddhist retreat is a great thing to do: space to think, time to meditate, learning about an aspect of the Dharma, enjoying being in the company of people who also value living a life based on values with as much awareness and kindness as possible.
If you’ve never been before, give it a go! And if you have been before, and know its value, now is a good time to look ahead and plan any retreats you may wish to go on. goingonretreat.com is a website that lists just about all the English-speaking retreats in Europe. Most of them are naturally in the UK, but you can go on a yoga retreat in Spain or meditate in Finland as well!