Isma XF3/XE1JC and Mark XF3/XE1B will activate Holbox Island, NA-045 during March 19-25, 2021. QRV on HF bands, SSB (check 40 & 20m especially).
Mark, XE1B says:
We will arrive Holbox today and set up station with big antennas. QSL via QRZ.com. The equinox in the Mayan Mexican Riviera represents one of the most important events at this latitude; Mayans were the most precise astronomers from all cultures.