Please note that I do not recommend specific accommodation providers.
Why? Everyone has different expectations and budgets, so what works for one may not work for another. The following lists are provided as options to look into. Please keep in mind that many establishments in this neck of the woods are independent and locally owned. They cater to seasonal clientele who are spending most of their time outdoors. Decor is often dated, and amenities are different than what you'd typically find at chain hotels in larger centres. If you have specific needs, please ensure the facility you choose offers it by calling them if it's not stated in their description. For example: tea/coffee station, kitchenette, fridge.
Also, please note the restaurant options in Whitney and Dwight (closest to Algonquin Park) are extremely limited and often seasonal. Please consider this when choosing where to stay.
Where to Stay for Algonquin Park Adventures
There are only three accommodation providers located in Algonquin Park: Killarney Lodge, Bartlett Lodge, and Arowhon Pines. All three offer meal plans and are on the higher end cost-wise. These providers are only open seasonally (May to October). Please note that meal times (and boat shuttle to mainland from Bartlett Lodge) may not be suitable for group workshop itineraries.
Your best bet is to stay either in DWIGHT, which is 15 minutes west of the park, or WHITNEY 5 minutes east of the park. If your workshop is taking place from November to April, I recommend staying on the west side of Algonquin Park, as there are more options open for both accommodations and restaurants. If you're participating in an Algonquin Backcountry Adventure, I recommend staying on the east side of Algonquin Park in Whitney, as our water taxi departs from Algonquin Outfitter's Opeongo Store, which is on the east side of the park.
Here is a list of some of the accommodation providers in the area to help you with your search:
Dwight (~15 minutes from Algonquin Park's west gate)
The Blue Spruce Resort - This comes highly recommend by all my clients who have stayed here
Wolf Den Nature Retreat Hostel & Cabins - The eco-cabins come highly recommended by all my clients who have stayed there
Huntsville (~35 minutes from Algonquin Park's west gate)
Whitney (~5 minutes from Algonquin Park's east gate)
The Mad Musher Restaurant & Riverside Rooms - hostel-style accommodation
Algonquin Rolling Rapids Motel
Camping in the park is also an option. Mew Lake campground is open year-round. It offers tent camping, yurts and RV hook-ups.
The district of Muskoka is made up of a number of small towns. The "big three" from south to north are: Gravenhurst, Bracebridge, & Huntsville. The area is quite large, and travel within the region always involves going around a lake (or two).
Where to Stay for Muskoka Adventures
There are lots of options for hotels, motels, bed and breakfasts & Air BNBs in the area, as a quick Google search will reveal. I do recommend checking out the list of providers compiled by Discover Muskoka. Here is a list of some of the accommodation providers in the area:
Bracebridge (I typically recommend staying in Bracebridge as it's central to everything)
Windermere House in Windermere
Sherwood Inn in Port Carling