The word "most excursional" can be replaced with synonyms such as adventurous, exploratory, offbeat, unusual, and unconventional. An adventurous activity involves taking risks and trying new experiences, while an exploratory activity involves a quest for unknown things or places. Offbeat activities refer to unconventional, odd, or out-of-the-box experiences that differ from the mainstream. Unusual activities offer something different from what is normally expected, and unconventional activities are those that are against the norm. Overall, choosing a synonym for "most excursional" depends on the type of experience one wants to convey to the audience or the context in which the word is being used.