You can access cryptocurrency markets by opening an account with a cryptocurrency exchange. This will allow you to buy, sell, and trade cryptocurrencies. You will need to provide personal details and sometimes undergo Know-Your-Customer (KYC) verification. You may also need to connect your bank account to the exchange in order to fund your account. Additionally, you can use platforms such as localbitcoins.com or Bisq, which are peer-to-peer exchanges that do not require a traditional account setup.