Depends on the field.
Regardless, OP, since Dartmouth does not have Marine Bio (nice river running by campus, but other than that its landlocked), why Dartmouth? Dartmouth’s a great school, but there are plenty of other places with excellent Marine Bio programs (see UMiami). Run Dartmouth’s NPC and see if its even affordable. Run the NPC of other ED schools to see if they are affordable…
Again, why D?
Are you instate for U-Dub?