It seems to be made in 2 days

rather than compiled by real journey. A better version should perhaps begin by telling us you have indefinite number of holidays first, and how you managed to skip the nearby NMs, which sometimes are more attractive, and other tourist sites. Also, pay attention to the details, such as,very few places in Mammoth Cave allow you to 看钟乳石, and one mainly cruises the canals in swamp of Everglades, rather than 乘公园的船出海...