That is correct. If this neighbor you mention has, for example, an easement or other agreement that let's him cross the other pond owner's land to reach the pond does *not* mean that he or she has any access to your property. Entering onto your property in that situation could be trespassing.Of course, if this other neighbor has an easement over your property as well, that easement would be honored. You can determine this easily from your deed and from the title search which had been done you acquired the property--an easement generally must be recorded to be effective. (There are some easements granted by law, but they are typically only when a "landlocked" property owner needs to cross another's property to access his or  her own--and similar situations--which does not appear to be the case from what you right.