What are the advantages and disadvantages of tour guide explanation and self-guided explanation?

Self-guided explanation refers to the use of billboards and signs in scenic spots to explain to tourists. The advantages are comprehensive and accurate system and good interpretation quality. Low long-term cost. The disadvantage is that the interaction is poor, and the confusion of some scenic spots also causes problems for tourists.

Guide explanation is to guide the tour to explain to the tourists. The advantages are instant feedback communication, personalized service and high acceptance of tourists. The disadvantage is that when the tour guide's knowledge level is not wide, it may send the wrong information to the tourists, and the cost is relatively high.