I don't think it's lacking inclusiveness. Merriam-Webster defines "outdoorsman" as one who spends much time in the outdoors or in outdoor activities , with no mention of gender.

However, as this is a prescient issue, an option might be "outdoor enthusiasts".

I don't think it's lacking inclusiveness. Merriam-Webster defines "outdoorsman" as one who spends much time in the outdoors or in outdoor activities , with no mention of gender.

However, as this is a prescient issue, an option might be "outdoor enthusiasts".

Edit to account for changes to the OP:

I would suggest skipping "outdoorsmanship" and "excursions" altogether and instead opting for something along the lines of "A site for outdoor enthusiasts", with perhaps additions such as camping, climbing, canoing, etc. to help convey the general idea of what we mean by "the great outdoors".