Manta Point and Manta Bay at Nusa Penida see resident manta rays year-round, but May-October is peak season when plankton blooms bring them closer to shore for extended feeding sessions. Crystal Bay offers calmer conditions for newer divers wanting guaranteed manta encounters without fighting 2-knot currents.

Book through Crystal Divers in Sanur - they've been running Penida trips since 2012 with proper safety protocols and Nitrox certification. Expect 1.8-2.2M IDR for a 3-dive day trip including gear, lunch, and transfers. Departs Sanur Harbor at 7am, returns 5pm. Much shorter boat ride than operators from Padang Bai or Amed.

Manta Point has 1.5-2 knot currents so intermediate+ divers only - Advanced Open Water minimum recommended. Crystal Bay mantas are more relaxed around divers, perfect for photography. Visibility ranges 30-50m during dry season, drops to 15-25m during rains but still very diveable. Water temp steady 26-28°C year-round.