I think “sour legs” is Chinglish, but it works quite well given that you have already commented on the sourness of the raspberries. Maybe your post will add this usage of “sour” to English 🙂

Your time references are confusing here: “The rest of the night we stayed in a big room and played cards for 1 hour. Thankfully we brought snacks and kept our phones and stayed up till late…” Were you ‘all night’ or ‘1 hour’ or ’till late’?

There are a few minor language errors or typos but these don’t significantly impact on the reading experience.

Consider using images to give your blog post extra impact, especially a ‘featured image’ so it shows up in the post listings and looks more attractive to readers. Also, you can use the ‘tags’ function so your post shows up in the listings of related topics.