Thunder Lake, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Penyak, Bangka Belitung Islands, Indonesia, is known for its beautiful beaches and proximity to the stunning Parai Tenggiri Beach. The best time to travel to Thunder Lake, Canada, is during the summer months of June to August, when the average air temperature is around 20°C (68°F) and the water temperature is approximately 18°C (64°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!