Unawatuna is considered a safe town, and it's generally safe to walk around both during the day and at night. While tourists come in all varieties, the locals are known for their calm and welcoming nature, treating visitors well. However, it's a good practice not to carry large sums of money, although this advice applies to resorts worldwide.
When on the beach, it's advisable not to leave your equipment and jewelry unattended if you plan to go elsewhere. Additionally, venturing into thickets at night is discouraged, not due to nefarious reasons, but mainly because of the potential encounter with poisonous snakes. Remember, you're in the tropics, and unexpected situations can arise.
The primary risk in Unawatuna is related to swimming in the ocean. Coastal currents can be unpredictable, and strong waves are not uncommon. When visiting beaches, check if there are lifeguards, keep a close watch on children, and exercise caution while swimming.