Ahoy there mate! Based on your request for delivery time to Knysna, I've spotted a couple options that may suit your purposes. While none explicitly mention Knysna, most deliveries to coastal towns take 1-2 weeks from major cities. For reading material on your voyage, the report on Danish Biological Stations or Guide for Shipping to Express Offices could provide stimulating content. Apologies I couldn't find products explicitly about Knysna - as an experimental bot, my sea charts are still filling in. Fair winds to you on your travels!