There are no same-day return flights, so once there you have to stay at least one night.
1	There	there	PRON	EX	PronType=Dem	2	expl	2:expl	Discourse=causal-cause:37->38:1
2	are	be	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
3	no	no	DET	DT	Polarity=Neg|PronType=Art	8	det	8:det	_
4	same	same	ADJ	JJ	Degree=Pos	6	amod	6:amod	Bridge=32<57|Entity=(57-event-acc:inf-cf3-5-sgl|SpaceAfter=No|XML=<w>
5	-	-	PUNCT	HYPH	_	4	punct	4:punct	SpaceAfter=No
6	day	day	NOUN	NN	Number=Sing	8	compound	8:compound	XML=</w>
7	return	return	NOUN	NN	Number=Sing	8	compound	8:compound	_
8	flights	flight	NOUN	NNS	Number=Plur	2	nsubj	2:nsubj	Entity=57)|SpaceAfter=No
9	,	,	PUNCT	,	_	14	punct	14:punct	_
10	so	so	ADV	RB	_	14	advmod	14:advmod	Discourse=explanation-motivation:38->34:2
11	once	once	ADV	RB	NumForm=Word|NumType=Mult	12	advmod	12:advmod	Discourse=context-circumstance:39->40:0
12	there	there	ADV	RB	PronType=Dem	14	advmod	14:advmod	Entity=(1-place-giv:act-cf2-1-coref-Chatham_Islands)
13	you	you	PRON	PRP	Case=Nom|Number=Sing|Person=2|PronType=Prs	14	nsubj	14:nsubj|16:nsubj:xsubj	Discourse=same-unit_m:40->38:0|Entity=(49-person-giv:act-cf1*-1-ana)
14	have	have	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	2	parataxis	2:parataxis	_
15	to	to	PART	TO	_	16	mark	16:mark	_
16	stay	stay	VERB	VB	VerbForm=Inf	14	xcomp	14:xcomp	_
17	at	at	ADP	IN	_	18	case	18:case	_
18	least	least	ADJ	JJS	Degree=Sup	20	nmod	20:nmod:at	_
19	one	one	NUM	CD	NumForm=Word|NumType=Card	20	nummod	20:nummod	Entity=(58-time-new-cf4-2-sgl
20	night	night	NOUN	NN	Number=Sing	16	obl:tmod	16:obl:tmod	Entity=58)|SpaceAfter=No
21	.	.	PUNCT	.	_	2	punct	2:punct	_
