What would be a good way to write "thank you for your hospitality" In Japanese?
I just got back from a homestay and I wanted to write them a thank you note. I want to thank them for their hospitality and tell them how much fun i had.

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I would say: 
親切[しんせつ]にしていただいてありがとうございました。みなさんのおかげで楽しく過ごす[たのしくすごす]ことができました。
(Thank you for your kindness / hospitality. I had good time / fun / I stayed having fun thanks to you all.)

I hope this was helpful.

Answer

お世話(せわ)になっております