Cell Block Sea

Cell Block Sea (also known as Phish Farm and Serpent Turf) is a recurring challenge on .
==Rules==
Castaways must race out into the water and swim over to their respective tribe's bamboo cage. Once the entire tribe has arrived, each person must climb up and over the cage wall and jump into the water. They must then retrieve a large item and bring it back to shore, where they will complete a final task. The first tribe(s) to finish this final task would win.
==History==
=== United States ===
The challenge debuted in as a Reward/Immunity Challenge in , where each tribe had to retrieve a heavy chest from the cage, then move the chest along a track and onto a platform using grappling hooks, with the first tribe to get their chest on their finish platform winning. The tribes traded the lead throughout the challenge, with Bikal narrowly hooking their final piece of track ahead of Gota to win, sending Gota to their second straight Tribal Council.
In , the challenge was once again used for reward and immunity, with the tribes collecting four fish traps from the cage, before using the puzzle pieces in the fish traps to solve a puzzle back on the beach. Luzon took a large lead over Aparri and Solana heading into the puzzle stage, but J'Tia Taylor cost them the challenge when she failed to complete the puzzle. Sarah Lacina managed to finish first for Aparri, and LJ McKanas finished second for Solana, sending Luzon back to Tribal Council.
The challenge reappeared in , again for reward and immunity, where six members of each tribe had to drag a 400-pound snake out of the cell and onto shore. The three remaining castaways had to retrieve numbered tiles from the snake, after which a code could be solved, unlocking rings which they must toss onto eight targets to spell "IMMUNITY". Nuku had an early lead with their strategy of involving every single castaway, while Mana fell behind when they had difficulty transporting their snake. However, Mana was able to catch up on the ring toss thanks to Malcolm Freberg, but Nuku managed to pull out and win again, sending Mana back to Tribal Council.
The challenge was used as the fourth Immunity Challenge in , in a similar design to Caramoan, but with only one piece of track to hook, and an additional stage of getting all five balls in the chest on top of a narrow perch. Malolo had a huge lead heading into the final task after Naviti struggled throughout the challenge. However, Naviti managed to catch up when Malolo could not get their final ball on their perch, allowing Naviti to come from behind and win, sending Malolo to Tribal Council.
In , the challenge was again used for reward and immunity, and worked similarly to Game Changers, except that all eight members of each tribe would now start on a floating platform instead of racing out from the beach. Kama took an early lead after Keith Sowell struggled in the water for Manu. Although Keith attempted to make up for the deficit during the ring toss portion, he only set Manu further back, allowing Kama to pull out their second consecutive victory, sending Manu back to Tribal Council.
The Edge of Extinction format was reused in , with a puzzle piece being unlocked instead of rings. Each tribe would then solve a jigsaw puzzle of the season's logo. Vesi lagged behind for most of the challenge; Nneka Ejere's poor showing at the puzzle proved to be the nail in their coffin, as Baka and Coco defeated them handily, sending them to Tribal Council.
=== Australia ===
===Quebec===
===South Africa===
The Survivor: Cagayan version of the challenge was played for tribal reward in . With Santoni Engelbrecht lagging behind on the first part of the challenge, Vuna fell behind and gave Zamba the lead heading into the rotating puzzle. However, both tribes were quickly equalized as neither tribe could figure out the puzzle. In the end, Dino Paulo figured out the puzzle first, winning Zamba a fishing kit.
===United Kingdom===
The challenge appeared as the seventh tribal Immunity Challenge of , where the tribes had to build an arch puzzle to spell out "IMMUNITY" to win. Christopher Haul attempted to throw the challenge for La Nena, but his tribemates managed to pick up the slack and catch up to Caletón. In a photo finish, Caletón made it back to their mat before La Nena, but failed to notice an error with their puzzle, thus yielding the win to La Nena.
==Winners==
<tabber>United States=
Episode	Challenge Type 	Winners
 	Tribal Reward/Immunity	
 	Tribal Reward/Immunity	
 	Tribal Reward/Immunity	
 	Tribal Reward/Immunity	
 	Tribal Immunity 	
 	Tribal Reward/Immunity	
 	Tribal Reward/Immunity	
 	Tribal Reward/Immunity	
|-|France=
Episode 	Challenge Type 	Winner
Episode 2	Tribal Reward 	
Episode 4	Tribal Reward 	
Episode 1	Tribal Reward 	
Episode 2	Tribal Immunity	
Episode 5	Tribal Immunity	
Episode 1	Tribal Immunity	
Episode 7	Tribal Reward 	
Episode 2	Tribal Reward 	
|-|Quebec=
Episode 	Challenge Type 	Winners
Episode 19	Tribal Immunity	
|-|South Africa=
Episode	Challenge Type	Winners
 	Tribal Reward 	
|-|United Kingdom=
Episode 	Challenge Type 	Winners
Episode 7	Tribal Immunity	
</tabber>
==Gallery==
<tabber>United States=
Cell_block_sea_caramoan.jpg|The tribes compete in .
12e.jpg|Bikal and Gota compete in Caramoan.
Cell_block_sea_luzon.jpg|Luzon swimming to their cell in .
cell block sea kass.png|Kass jumps into the cell for Luzon (Cagayan).
34_108342_d13472b.jpg|Nuku competes in .
Caleb cell block sea.jpg|Mana competes in Game Changers.
110483 16962b.jpg|Malolo climbs into their cell in .
110483 17753b.jpg|Naviti competes in Ghost Island.
S38E02 IC.jpg|The tribes compete in .
S38E02 DavidManu IC.jpg|Manu competes in Edge of Extinction.
Baka Serpent Turf Snake.jpeg|Baka competing in .
Coco Serpent Turf Puzzle.jpg|Coco solving their puzzle in Survivor 43.
|-|France= 
Kls7.ep2.jpg|The challenge in 
KLS7 Ep2 Cell Block Sea.jpg|Guntao competing in Palawan.
Kls8.ep4.jpg|Mingao competing in .
KLS13 Ep1 Cell Block Sea.jpg|The challenge in .
KLS16 Ep2 Cell Block Sea.png|Simban competing in .
KLS16 Ep2 CellBlockSea.png|The challenge in La Nouvelle Édition.
KLS21 Ep5 Cell Block Sea.png|Makawa competing in .
KLS21 Ep5 CellBlockSea.png|Makawa competing in Fidji.
KLS24 Ep1 Cell Block Sea.png|The challenge in .
KLS24 Ep1 CellBlockSea.png|Lawaki competing in L'Île des Héros.
KLS27 Ep7 Cell Block Sea.png|The challenge in .
KLS27 Ep7 Cell Block Sea2.jpg|Lanta-naï competing in La Légende.
KLS30 Ep2 Reward Challenge1.jpg|The challenge in .
KLS30 Ep2 Reward Challenge2.jpg|Matukad competing in Les Chasseurs d'Immunité.
KLS30 Ep2 Reward Challenge3.jpg|Kadasi competing in Les Chasseurs d'Immunité.
|-|Quebec=
QCS1E19.jpg|Tiyaga at the challenge in .
|-|United Kingdom=
UK3EP07Cell Block Sea.jpg|Cell Block Sea as featured in Survivor U.K. (2023).
UK3EP07Cell Block Sea 2.jpg|
UK3EP07Caleton flop Cell Block Sea.jpg|The puzzle.
</tabber>
==Trivia==
* The eventual runner-up has always been on the winning tribe.
* Andrea Boehlke, Aubry Bracco, Malcolm Freberg, Sarah Lacina, and Tony Vlachos have competed in this challenge twice.
** Andrea and Sarah won both times, while Aubry, Malcolm, and Tony have only won once.
==References==
Category:Survivor (U.S.)
Category:Koh-Lanta
Category:Recurring Challenges
Category:Survivor: Caramoan
Category:Survivor: Cagayan
Category:Caramoan Challenges
Category:Cagayan Challenges
Category:Challenges
Category:Survivor: Game Changers
Category:Game Changers Challenges
Category:Survivor: Ghost Island
Category:Ghost Island Challenges
Category:Survivor: Edge of Extinction
Category:Edge of Extinction Challenges
Category:Survivor 43
Category:Survivor 43 Challenges
Category:Koh-Lanta: Palawan
Category:Koh-Lanta: Caramoan
Category:Koh-Lanta: Raja Ampat
Category:Koh-Lanta: La Nouvelle Édition
Category:Koh-Lanta: Fidji
Category:Koh-Lanta: L'Île des Héros
Category:Koh-Lanta: La Légende
Category:Koh-Lanta: Les Chasseurs d'Immunité
Category:Survivor Québec (2023)
Category:Survivor Québec (2023) Challenges
Category:Survivor South Africa: Immunity Island
Category:Immunity Island Challenges