See Mozambique Security Update Jan 2020 in Noonsite:
Cruisers planning to visit Mozambique and passage the Mozambique channel are being advised to be extremely cautious according to experienced South African cruiser Des Cason. He told Noonsite that since the publication of his Madagascar and Mozambique channel cruising notes in 2014, he has seen an increase in a number of issues of concern to cruisers to the point where he advises that Mozambique should be treated as a “No-Go” zone.