If C enters A's swimming pool without knowledge of A's invitation to B, can A bring an action against C for trespass?

The most accurate understanding revolves around the concept of implied consent in property law. When A invites B to use the swimming pool, that invitation creates a situation where B has consent to be on the property. If C enters the pool without knowledge of B's invitation, it is essential to consider that B’s invitation does not automatically extend to C. Therefore, A cannot successfully argue that C is trespassing based solely on the fact that A had invited someone else (B) since C did not have knowledge of this arrangement.

A's consent to B does not inherently grant permission to C, particularly since C is not privy to the invitation and does not fall under the reasonable expectations of those invited by A. C's entry could be characterized as an unauthorized intrusion on A's property rights; however, without awareness of A's invitation to B or a reasonable understanding of that consent, C's presence does not meet the criteria for trespass.

This is critical as it highlights the nuance in property rights and consent: merely having an invitation given to one party does not automatically confer rights or permissions to others who enter the property without knowledge of that consent. Additionally, if A’s property is seen as a private space with limited access, this reinforces the understanding that A's