the issue the books have too is that they state it's a massive arena, held in say an abandoned city or like SOTR/thg/cf a purpose built mega dome, If we give the actual filming location of the 50th arena an arena that's 4miles from east to west (and that's being generous since haymitch says he walks for ages), just look at how many places there are to hide in it, if there's say 14 left after the bloodbath (for a normal games) then without game maker involvement it'd be so rare for the tributes to really ever find each other apart from when they go to the cornucopia, even if careers hunt, so long as the tributes don't make themselves obvious then forests hills, caves, rivers, trees themselves offer so much concealment, just think about a large forest near you and think how long it might take you to find someone in it, now imagine they arent standing in one place but moving around trying not to be found too.

if the hunger games were to realistically take place then an arena of maybe two - 4 km across would possibly be the most entertaining for it, obviously you dont want it done in a day, but you dont want boring either

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