Yes, there is.
1.
(1) Cancelation 48 hours prior to tour or earlier : No charge
2.
(2) Cancelation 48 to 24 hours prior to tour : 30% of the tour fee
3.
(3) Cancelation less than 24 hours prior to tour, cancelation without notice : 100% of the tour fee
If the flight itself is canceled / delayed, no cancellation fee will be charged. In this case, please check this site.
※Due to coronavirus mitigation measures, cancellation fees will apply even if you test positive. Thank you for your understanding.