So you are planning for a trip to Mahabaleshwar. Way to go, pal. This is the best time to visit that place.
Starting from all sort of scenic points to boating and stuff, you can just enjoy being there with all the fog and greenery. Do visit Mapro Garden and relish the pizzas they serve. (Mouth watering and delicious :*)
And well, devour on the strawberries as they grow there. If you're keen, you can also see the plantations.
So, backpack and go!!! :D