Best itinerary end September 2017 Shiretoko

Hi

I would like to visit Shiretoko from 25 sep to 28 sep. What would be best itinerary on what to do these 3 days. We are flying into Memanbetsu airport on 25 sep. we are interested in wild life, cruises and scenery. Not sure if the weather and sea will be suitable for traveling to Shiretoko during this period.
For advice, please.

Thank you.

If you have a rental car, I would like to suggest that you also include Lake Mashū, Lake Kussharo, Lake Akan, and Cape Notoro in addition to Shiretoko as I loved the scenery in these places and it is probably not often you get to visit there: http://monochrome.me.uk/blog/?s=hokkaido%2Blake

Try visiting the Shiretoko Five Lakes. It is really beautiful and breathtaking.