Jeju Island - 2026 ACF Regionals

Question

This volcanic island developed a labor tradition in which women divers called haenyeo (“hen-yuh”) practiced breath hold diving to harvest abalone, sea urchins and seaweed. For 10 points each:

[10m] Name this island, which is home to hundreds of parasite cone volcanoes called oreum (“OR-um”). This island is west across a strait from Tsushima.

ANSWER: Jeju Island [accept Jeju-do]

[10e] Jeju is south of this peninsula, whose northern end is home to Mount Paektu. The port of Busan is at the southeastern end of this peninsula.

ANSWER: Korean Pensinsula [accept Korea; accept Chosŏnbando or Hanbando]

[10h] This massive volcano lies at the center of Jeju. Baengnokdam Lake is found on this shield volcano, which names a national park on the island.

ANSWER: Hallasan [or Mount Halla; or Hannasan]

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Summary


California (South)	Main Site	Y	4	22.50	100%	75%	50%
Canada	Main Site	Y	10	20.00	100%	80%	20%
Lower Mid-Atlantic	Main Site	Y	1	10.00	100%	0%	0%
Lower Mid-Atlantic	Main Site	Y	6	20.00	100%	50%	50%
Midwest	Main Site	Y	8	17.50	100%	63%	13%
Northeast	Main Site	Y	5	16.00	100%	60%	0%
Overflow	Main Site	Y	3	20.00	100%	67%	33%
UK	Main Site	Y	12	15.83	100%	50%	8%

Data


UC Santa Barbara	Arizona State	10	10	0	20
UC Irvine	UCSD C	0	10	10	20
Carleton University	Toronto Metropolitan	10	10	0	20
McMaster A	Guelph	10	10	0	20
Queen's	Toronto B	10	10	0	20
Toronto D	Brock	10	10	0	20
Toronto E	Simon Fraser	0	10	0	10
Waterloo B	Toronto F	10	10	0	20
McGill B	UBC A	10	10	0	20
Ottawa	UBC B	0	10	10	20
Waterloo A	McGill A	10	10	10	30
Toronto G	Western B	10	10	0	20
NC State B	Liberty B	0	10	0	10
North Carolina A	Liberty C	10	10	10	30
Liberty A	North Carolina C	0	10	0	10
South Carolina A	VCU	0	10	0	10
North Carolina B	South Carolina B	10	10	10	30
Virginia	Virginia Tech A	0	10	0	10
William and Mary	Virginia Tech B	10	10	10	30
UCSD B	UCLA A	10	10	0	20
UCSD A	UCLA B	10	10	10	30
Chicago D	Chicago B	0	10	0	10
Chicago A	Chicago C	10	10	0	20
Northwestern D	Notre Dame B	10	10	0	20
Illinois B	Purdue A	0	10	0	10
Harvard A	Bowdoin A	10	10	0	20
Southern Connecticut State	Bowdoin B	0	10	0	10
Harvard B	Brandeis A	10	10	0	20
Brandeis B	MIT	10	10	0	20
Brown	Yale	0	10	0	10
Iowa State	Carleton College	10	10	0	20
Georgia Tech A	Missouri A	0	10	0	10
Washington A	Claremont	10	10	10	30
Indiana B	Chicago E	10	10	0	20
Illinois C	Illinois A	10	10	0	20
Northwestern B	Indiana A	10	10	10	30
Purdue B	Northwestern C	0	10	0	10
LSE	Birmingham	0	10	0	10
Edinburgh A	Bristol	10	10	0	20
Southampton A	Edinburgh B	0	10	0	10
Cardiff	Imperial C	10	10	0	20
Montpellier	UCL	0	10	0	10
Imperial A	Cambridge A	0	10	0	10
Manchester	Cambridge B	10	10	0	20
Cambridge C	Oxford C	10	10	10	30
Durham	Imperial B	0	10	0	10
Southampton B	Oxford B	10	10	0	20
Oxford A	Warwick A	0	10	0	10
Warwick B	City St. George's	10	10	0	20