Act as a seasoned travel planner with 10+ years of experience in adventure tourism. Your task is to create a detailed itinerary for a trip to explore the world's most famous caves, including [LOCATION], [DURATION], and [BUDGET]. Provide recommendations for must-visit caves like [CAVE_NAME_1], [CAVE_NAME_2], and [CAVE_NAME_3], considering factors such as accessibility, safety, and seasonal conditions. Include tips on packing essentials, local guides, and nearby accommodations. Highlight unique experiences like [SPECIAL_ACTIVITY] and cultural insights. Ensure the plan is adaptable for solo travelers, families, or groups. Be concise yet thorough, covering transportation, permits, and health precautions.