I think so. We have been up to Geldeston a few times when we hired Fair Regent, and been up to the Locks and the Dyke, so I would think that it has a reasonable depth there. When you get to the top of the Geldeston arm you have the choice of either turning left towards Geldeston Locks, where The Locks pub is, and there’s a proper key heading there, or to the Dyke, where it’s a bit wilder, as described in Grendel’s and my recent acconts (see Holiday Tales threads).
I haven’t heard of anyone complaining about lack of depth either direction, except when you get to the end of near the Dyke beyond the turn off to the boatyard.