Koopa's Seaside Soiree
- “This board is a realization of my lifelong dream to build a beautiful tropical resort. Enjoy the laid-back atmosphere as you mellow out to my island groove and bask in its sights.”
- —Koopa, Mario Party 4
Koopa's Seaside Soiree (Koopa's Seaside Soirée in the PAL region) is an island resort board hosted by Koopa in Mario Party 4. He built it because he always wanted to have a place to hang out by the sea and wanted his friends to have fun in it. Here, Koopas are everywhere and are in charge of the games and shops (the one hosting wears a light blue Hawaiian shirt).
The main attractions here are the dolphins and the Koopa Kabana hotel. Players that land on a Happening Space next to a dock (with a picture of a fruit on it) summon a Dolphin that takes them to another dock with the corresponding picture. The player cannot refuse to ride the dolphin. One of the Koopas constantly tries to get coins from the players so that he can build the resort hotel, the Koopa Kabana. Every time players pass the Koopa space, they pay five coins. The more coins invested, the more sophisticated the Kabana appears. If players land on one of the ? Spaces in front of it, the Koopa asks that they pay the fine for a one week stay at the Kabana, which is the amount of coins that is currently invested. When the fee is paid, a tidal wave comes in and destroys the Kabana, so the investments start all over again to build another one.
The Item Minigame of the board involves hitting one of three melons that have an item in each. Players are spun around before they choose, making it harder to make a choice. The Coin Minigame involves fishing. Players are given one of the fishing rods. The chosen rod is used to reel in the fish that gets caught on it. The bigger the fish, the more coins players win.
In Story Mode, if the player beats the opponents on the board, Koopa Troopa challenges the player to a Minigame called Kareening Koopas in order to win his present.
Spaces
| Type of Space | Number of Spaces |
|---|---|
 Blue Spaces |
45 |
 Red Spaces |
3 (0 during the last five turns if the Red Spaces turn into either Bowser Spaces or Fortune Spaces) |
| File:Happening Space4.PNG Happening Spaces |
14 |
 Mushroom Spaces |
12 |
 Warp Spaces |
2 |
 Battle Spaces |
4 |
| File:Bowser Square.PNG Bowser Spaces |
4 (7 during the last five turns if the Red Spaces turn into Bowser Spaces) |
 Fortune Spaces |
5 (8 during the last five turns if the Red Spaces turn into Fortune Spaces) |
| Total of Spaces | 89 |
Names in other languages
| Language | Name | Meaning | Notes |
|---|---|---|---|
| Japanese | うきうきパーティ[?] Uki-uki Pāti |
Happy Party | |
| German | Koopas Strandparty[?] | Koopa's Beach Party | |
| Italian | Koopacabana[?] | Copacabana parody name | |
| Spanish | Koopacabana[?] | Copacabana parody name |
Trivia
- The Koopa Kabana is a pun on Copacabana, a beach in the Brazilian city of Rio de Janeiro that also appeared in Mario is Missing!.
