Hi Kelle,
don't you worry, we have resident orangutan crabs in Atmosphere House Reef so you should be able to see them here!
I agree with the others about coastal diving in Dauin - definitely not to be missed! Corals in Apo are stunning and it's lovely to see all those turtles relaxing in soft coral beds, but allow some time to your itinerary to check the macro sites in Dauin coast too. There's also a special treat for you thinking about your holiday time: we have octopus mating season here in Dauin from September to November. That means that the little fellas are out and about much more than usual so they are easy to encounter and photograph, after all they are mostly interesting impressing the partners during that season and are pretty much ignoring divers. You can expect to see several different species in a couple of days. We have here at least blue ring octopus, mototi octopus, wonderpus, mimic octopus, white-v octopus, coconut octopus and common reef octopus, so if you are into octopi, the fall is your dream time for dive vacation here (despite the more unpredictable weather)! Here's the collection from last October by our in-house marine biologist Daniel Geary (all the pics taken within a week):
What it comes to your worries with typhoon, the typhoon belt indeed goes over the Visayas BUT only in the northern part of the region. Looking at the map, it's usual for storms and typhoons to hit the land in the eastern part of the country (Leyte and Samar) and after that take a course towards southwest / Manila. That means that the southern parts of the Visayas, like Dauin, are pretty safe and sheltered. I've lived here now 2,5 years and have never witnessed a proper storm (*knocking the wood*).
PM or email me Kelle if you need any help with arrangements, always happy to help. I'm looking forward seeing you here in November!