Quick: Connect Metamask or Web3 Wallet
Use metamask "Add Network" with chainId 61717561
with your RPC url of choice.
If you don't have an RPC server of your own, you can use a public RPC server such as: https://c.onical.org
Some wallets allow you to customize the explorer URL, if that is the case use https://aquachain.github.io/explorer/#/
Note: Metamask users should use AQUAC as the 'symbol' for Aquachain. This will fix an issue with fetching fiat prices in the background it seems.
Image Icon: https://aquachain.github.io/img/aqua-icon.svg
or png: https://aquachain.github.io/img/aqua-icon-200.png