House swap or stay with family in North Spain

Bilingual (Spanish/English) family of 3, homeschooling our 9 years old boy. Mum, Betty is a Montessori childminder running nursery from home. and Dad, Dave secondary Art teacher works nearby in an English School. We have a very friendly dog called Cutey, a hamster and 7 fish.
As teachers we get lots of holidays and are very happy to host other homeschooling families all year round and to swap houses during school holidays. We like cycling, walking, water activities during the summer, exploring outdoors all year round.We live in a very nice and green part of North of Spain that provides plenty of opportunities for this. Our house is not big but have space for hosting a family for short periods and swaps during school holidays. We have a huge garden.