If you wish to disconnect from the outside world or declutter your mind, I suggest hiking or walking a trail. It brings your whole being and mind to a calm and tranquil state. It helps you be one with nature. It will change your perspective on silence. It is also an opportunity to contemplate life. Try it!
John 14:27 - Peace I leave with you; my peace I give to you. Not as the world gives do I give to you. Let not your hearts be troubled, neither let them be afraid.