Grilling seafood can be a delightful addition to your BBQ menu. Opt for thick and firm fish varieties like salmon, tuna or swordfish that can withstand the heat of the grill. Brush the fish with a marinade or olive oil, season with herbs and spices, and grill over a medium heat until it flakes easily. Serve it with a squeeze of lemon or a flavourful sauce for a delectable seafood feast.