This is some code for looking at XTide (http://www.flaterco.com/xtide) graphs and tables in a buffer. The grooviest feature is a "T" key tie-in to M-x calendar, so you can bring up the tides for the selected day, a bit like "S" for sunrise and "M" for phases of the moon.
XTide's own gui does more than this interface, but if you're on a tty where the gui can't run, or just want to stay in emacs then xtide.el is a nice way to quickly see tide times. You need to set your location in the XTIDE_DEFAULT_LOCATION environment variable. If not then M-x xtide just shows the list of locations available (but there's no interactive selection from that list ... yet).
xtide.el
Description: application/emacs-lisp
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