Answer:
My family and I enjoy camping.
Step-by-step explanation:
A gerund is a verbal formed with the root of a verb + -ing (like “camping”) that does not act as a verb but as a noun in a sentence, thus, it can be a subject, an object of a preposition, a direct or indirect object or a complement.
The word “camping” acts as a gerund in the sentence “My family and I enjoy camping” because in here “camping” is not a verb, but a direct object, that is, the recipient of the verb “enjoy.”
In sentence 2, on the other hand, “camping” is an adjective that describes the noun “club” and in sentence 3, it is part of the verbal phrase which indicates the past continuous tense.