Loh Samah Bay offers generally safe conditions for swimming and snorkeling, particularly during the dry season (November-April) when seas are calm. The sheltered cove provides protection from waves, creating clear, tranquil waters ideal for viewing marine life. However, be aware of boat traffic from tour operators entering the bay. Current regulations may limit or prohibit swimming to protect the marine ecosystem, as Phi Phi Leh is part of a national park with conservation measures. Always check current access rules, wear appropriate flotation if needed, and be mindful of coral—avoid touching or standing on it.

The best time to visit Loh Samah Bay is during Thailand's dry season from November to April, when weather is optimal with calm seas, clear skies, and excellent underwater visibility for snorkeling. This period offers the most reliable boat access and comfortable conditions. However, these months also bring more tourists. For a balance of good weather and fewer crowds, consider visiting in November or April. The bay may be inaccessible during monsoon season (May-October) due to rough seas. Arriving early morning (before 10am) helps avoid peak tour boat crowds.

Loh Samah Bay is accessible only by boat, as Phi Phi Leh is an uninhabited island. The most common approach is joining organized boat tours from Phi Phi Don, Phuket, or Krabi, which typically include Loh Samah Bay alongside other Phi Phi islands attractions like Maya Bay. Tours depart daily during high season, taking 45 minutes to 2 hours depending on departure point. You can also hire private longtail boats or speedboats from Phi Phi Don for more flexibility. All visitors must pay Hat Noppharat Thara-Mu Ko Phi Phi National Park entrance fees.

Loh Samah Bay has absolutely no facilities, accommodation, or restaurants, as Phi Phi Leh island is uninhabited and protected as part of a national park. All visits are day trips only, typically lasting 30-60 minutes as part of broader island-hopping tours. Visitors must bring their own water, snacks, and supplies, and should take all trash with them. All accommodation and dining options are located on neighboring Phi Phi Don island (Tonsai Village area) or on the mainland in Phuket, Krabi, or Ao Nang, where tour operators are based.

Loh Samah Bay is renowned for its excellent snorkeling opportunities in a sheltered, scenic setting. The cove's calm, clear waters provide visibility to observe diverse marine life including tropical fish, coral formations, and occasionally sea turtles. The bay's protected position creates tranquil conditions ideal for beginner and intermediate snorkelers. Its dramatic limestone cliffs rising from turquoise waters create a stunning backdrop for the underwater experience. However, conservation efforts may periodically restrict access to protect the delicate marine ecosystem, so the bay's special appeal lies in both its natural beauty and ecological importance.