Well, I think it can be played out in side thread that Yolhu discovers his soldiers had proceed (without protocol or permission) to rape one captain's companions and there is the serious military trial/punishment scene. Besides that celebration is going on Khrui spends time fixing the ships for sail condition (and socialize also party or in more private setting possible).<br/><br/>On exploring wise; I imagine War Manse 13 has kept tabs on various systems and defense outposts besides War Manses and so one exploring mission goes to old outpost (not War Manse but more like distant underwater base or island base which was lost contact with after first age). Or go even other War Manse see was it destroyed or what exactly happened to it to cause loss of contact.<br/><br/>Or another is that there is island which became associated with War Manse 13 years ago (was long distant away) which contact has been lost (they used prayer communication which Umeri heard but prayers had fallen silent in past year/month and prayers did not tell what happened the silence).<br/><br/>Ofc underwater exploring is a thing and there's ways to do them (hearthstones, charms, water aspects, underwater vessels and even suitable artifact armors).