Accessing the "underground" is how to access dark web links on your Android in the most basic way. It is actually very easy to find these links as the Internet connection on most mobile phones nowadays is quite slow and therefore accessing them will be a real chore. The reason why they are so difficult to get to is because they require a lot of SEO (search engine optimization) tactics to gain a high ranking. However, you need to know that you can use free tools to find these links. They are hidden deep down in the Google Android database, and you can tap into them and get to the "good stuff".