Thanks for your appreciation. Adventurous Pro theme in translation ready and has been currently translated in Brazilian Portuguese and Hungarian languages.
If you want to make your site Multi-language then you need to install plugin like WPML or qTranslate. This helps to display your site in Multiple Languages.
But if you are just trying to install WordPress site in different language. Then you need to install WordPress in your language. Then you need to go to “adventurous-pro’ theme directly and then ‘languages’ folder. There you will see
adventurous.pot file and then you can generate your language .mo and .po files using poedit.net software. Then you can send us the language file and we can add it in core theme files so that you don’t loose your language when you update the theme.