Point of no return in Act I?

[Aru]

So,which thing/area pushes the story up to THAT moment of the plot? I'd like to do as much stuff that is possible in the act I with the current team before things change. Recently I got Esquie or whathever marhmallow man is called. I suppose going to the area after his pet rock is off-limit if I wish to run around with my team a little bit longer there?

[gungadin22000]

Do not finish the area where he goes with you to find his pet rock.

[iriyap]

Defeating the boss at Stone Wave Cliffs will end act 1.

[Meewec]

the boss fight at the end of stone wave cliffs is the end of act 1

[Aru]

Thanks. I just decided to roam around instead of going there. Got two chromatic nevrons down and entered the Yellow thingamajinks. I will postpone that story dungeon for far later.

[iriyap]

The Yellow Harvest area is huge and you're at the perfect level for it.

[Dragonmaster]

You’re good all the way up in strobe wave cliffs up to where laterns start to light your path. Do not proceed past this point until you’re ready. While it’s not a “hard” point of no return as you can return to act 1 areas, don’t past this point till your ready