To cite package ‘Waypoint’ in publications use:

  Eisler M (2026). _Waypoint: Convert, Validate, Format and Print
  Geographic Coordinates and Waypoints_. R package version 2.0.0,
  <https://CRAN.R-project.org/package=Waypoint>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Waypoint: Convert, Validate, Format and Print Geographic Coordinates and
Waypoints},
    author = {Mark Eisler},
    year = {2026},
    note = {R package version 2.0.0},
    url = {https://CRAN.R-project.org/package=Waypoint},
  }