diff --git a/core/models/logbooks.py b/core/models/logbooks.py
index 9a13b59..b0bde61 100644
--- a/core/models/logbooks.py
+++ b/core/models/logbooks.py
@@ -11,8 +11,15 @@ from troggle.core.models.troggle import Expedition, TroggleModel
 """
 
 todo = """
-- Can we rewrite things to eliminate the CaveSlug and objects? Surely
-  foreign keys work fine ?!
+- Can we rewrite things to eliminate the CaveSlug and objects? No
+  Surely foreign keys work fine ?! No
+  
+  Foreign keys do not allow for there being multiple ways to refer to a cave, eg 1623-1999-03 aka 1623-204
+  Having slugs allows for much more loose coupling to caves, which removes alot of the need to reset the database, which interupts work flow.
+  It also means we do not have to be creating temporary cave objects in the database, where we do not have the underlying file in cave_data.
+
+  To Do move Cave Slug back to troggle.core.models
+	
 """
 
 
@@ -25,6 +32,9 @@ class CaveSlug(models.Model):
     slug = models.SlugField(max_length=50, unique=True)
     primary = models.BooleanField(default=False)
 
+    def __str__(self):
+        return f"{self.slug}: {self.cave}"
+
 
 class LogbookEntry(TroggleModel):
     """Single parsed entry from Logbook