Use the Strava API to map your outings with R using the {rStrava} package.

library(tidyverse)
library(leaflet)
library(rStrava)
library(sf)

# Get your credentials from https://www.strava.com/settings/api
app_name <- "*******"
client_id <- "*******"
client_secret <- "*******"

#' Convert Google polylines from Strava activities to {sf} polylines
#'
#' @param gp string : encoded polyline
#'
#' @return {sf} polyline
gp2sf <- function(gp) {
  gp |> 
    googlePolylines::decode() |> 
    map_dfr(
      function(df) {
        df |> 
          st_as_sf(coords = c("lon", "lat")) |> 
          st_combine() |> 
          st_cast("LINESTRING") |> 
          st_sf() 
      }) |> 
    pull(1)
}

# Get activities
activities <- httr::config(
  token = strava_oauth(
    app_name,
    client_id,
    client_secret,
    app_scope = "activity:read_all",
    cache = TRUE)) |> 
  get_activity_list() |> 
  compile_activities() 

# Map 
activities |> 
  mutate(geom = gp2sf(map.summary_polyline)) |> 
  st_sf(crs = "EPSG:4326") |> 
  leaflet() |> 
  addTiles() |> 
  addPolylines()