How to Sell Optimism (OP) for Avalanche (AVAX) in Portugal

To sell Optimism for Avalanche in Portugal, first, find a cryptocurrency exchange that supports the OP/AVAX trading pair. Create an account, verify your identity, and deposit your OP into your exchange wallet. Locate the OP/AVAX pair on the trading platform and place a sell order to exchange your Optimism for Avalanche. If the OP/AVAX pair is unavailable, you can first sell Optimism for a stablecoin like Tether (USDT) or a fiat currency such as the Euro, then trade that for Avalanche. Be mindful of potential exchange fees, which vary by platform and can affect the total amount you receive.