South of Galle, Unawatuna tucks into a sheltered horseshoe bay of warm, reef-protected water that’s been drawing travellers for decades for good reason – it’s safe to swim in, excellent for snorkelling on the shallow reef, and just lively enough to be enjoyable without being overwhelming. The bay’s position close to Galle Fort means it combines beautifully with a heritage half-day into a genuinely satisfying south coast full day.