On 1 servers with real players, out of 5 Steam servers that run it now, fakes and empty ones included. Checked 00:16 UTC.
surf_ski_2 is a surf map: you slide along sloped ramps instead of running. It is not one of the maps that come with the game, so servers send it to players from the Workshop when they join.
Over the last 30 days surf_ski_2 was the #46 map on CS2 community servers, with 181 real players on it at any moment on average - 0.2% of everyone playing. It ran on about 11 servers with real players at a time. Right now 5 people play it on 1 servers, most of them on servers in Russia. It is busiest on Wednesday around 09:00 UTC and quietest on Saturday around 06:00 UTC, when about 1,298.2 times fewer people play it.
Right now 5, on 1 servers from the Steam server list. Over the last 30 days it had 181 real players on average at any moment. Fake servers and bots are not counted, and Valve matchmaking is not in the list.
On Wednesday around 09:00 UTC. The grid above shows every hour of the week in your own time zone.
The busiest right now: [CS2] Epic Sky 🌊 Surf Combat ➤ Mirror Rim #2 (5 players), [CS2] Epic Sky 🌊 Surf Combat ➤ PvP ➤ No Jail (0 players), [CS2] Epic Sky 🌊 Surf Combat ➤ Mirror Rim #1 (0 players). The full list is under "Servers running it now", and every server has its own page with its history.
de_mirage43,372 players on average
de_dust217,938 players on average
sandstone_fb14,457 players on average
de_mirage_fps6,347 players on average
awp_lego_25,436 players on average
awp_lego_2_fb4,846 players on average
de_mirage_christmas2,845 players on average
<null>1,272 players on average
bhop_emevaelx31,056 players on average
duels_mirage_1x11,022 players on average
de_inferno911 players on average
de_nuke782 players on average