‘Naturalists… not Naturists’

To quote a post by the Cumbria Nature Festival:

IMPORTANT CLARIFICATION

After a recent enquiry we need to clarify - Cumbria Nature Festival is primarily aimed at NATURALISTS… not NATURISTS. Whilst we aim to be as inclusive as possible, and certainly do not judge anyone, we are aiming the event at wildlife enthusiasts. Please do dress appropriately.

And if anyone else has booked in error, please contact us immediately for a full refund.

To quote one of the comments posted:

Both look at tits but for different reasons