One big reason to go to the Sangalaki area in summer is the near-certain encounters with these gentle, elegant giants, the manta rays (the one in this shot is ~2m). We only dived Sangalaki one day (two dives). During the first dive, my camera was low on battery (doh!). And only a couple of mantas had momentarily glided past. We swam between cleaning stations; no more mantas. So we go up to the boat, and there were tens of them, on the surface, within 30m of the boat. We swam maybe 40 mins with them. Luckily, in her excitement, Kitty had jumped in without her camera, so I took a bunch of photos with her camera.