IMHO, a 4 person life raft is the minimun you would want for 2 people. Make you have a "abandon ship" bag, well packed and withing easy reach (if not tied to) the life rafe. Go over the life raft gear several times, untill you are very familier with it.
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Our most important survival tool is our brain, and for many, that tool is way underused! SBRaider
Head Cat Herder