Can anyone tell me what this is?

A subreddit for enthusiasts, practitioners, collectors, and investigators of swords (and related historical weapons). Real swords, decorative, historical, fantasy; humor, social, ID requests, shopping help, art; all sword-related topics are welcome (we are not very strict about topicality)!

Trip/Fill in work for engineers

A subreddit for mariners and their related topics and issues. Professional mariners of all types can find here discussions about employment, training, safety, regulation, news, and tradecraft.

I have done Health and Safety Inspections of cruise ships - AMA

The r/cruises community is to discuss anything and everything related to cruising. People can discuss cruises they have previously taken or can ask questions to experienced cruisers about an upcoming cruise. Also, any deals offered by cruise lines or travel agents can be discussed including strategies to finding better deals on cruises.