Apparently you can burrow with a hare. Once that is successful, you can then jump and stay burrowed. I was able to jump down all of eastern road while burrowed, into Galadon, around on the streets, etc.

Here is an example:

You search for a suitable place to dig a burrow.

<873hp 794m 482mv 15410tnl *waxing* *wilderness* *5 AM* *outdoor*>
You start digging a burrow to hide yourself in.

<873hp 779m 496mv 15410tnl *waxing* *wilderness* *6 AM* *outdoor*>
You dig deeper underground, creating a deep tunnel.

<873hp 779m 496mv 15410tnl *waxing* *wilderness* *6 AM* *outdoor*>
Your burrow is completed, and you hide in its comfort.

<873hp 779m 496mv 15410tnl *waxing* *wilderness* *6 AM* *outdoor*> where
aff
People near you:
(PK) a long-eared hare A Fork in a Path Through the Prosimy

<873hp 779m 496mv 15410tnl *waxing* *wilderness* *6 AM* *outdoor*> You are affected by:
Commune: 'bless' modifies save vs spell by -14 for 59 hours.
Commune: 'bless' modifies hit roll by 7 for 59 hours.
Spell: 'haste' modifies dexterity by 4 for 20 hours.
Commune: 'armor' modifies armor class by -20 for 19 hours.
Spell: 'stone skin' modifies armor class by -60 for 0 hours.
Skill: 'burrow' for -1 hours.
Physical effect: 'form bonus' modifies dexterity by 2 for -1 hours.
Power: 'unbound spirit' modifies wisdom by 2 for -1 hours.
Power: 'unbound spirit' modifies morale by 10 for -1 hours.

<873hp 779m 496mv 15410tnl *waxing* *wilderness* *6 AM* *outdoor*> nod
jumpYour head awkwardly makes a sort of nodding motion.

<873hp 779m 496mv 15410tnl *waxing* *wilderness* *6 AM* *outdoor*> jump s
You leap high into the air.
You land gracefully.
A Bend in a Path Through the Prosimy


A small red fox skitters through the underbrush.

<873hp 779m 496mv 15410tnl *waxing* *wilderness* *6 AM* *outdoor*> aff

<873hp 779m 496mv 15410tnl *waxing* *wilderness* *6 AM* *outdoor*> You are affected by:
Commune: 'bless' modifies save vs spell by -14 for 59 hours.
Commune: 'bless' modifies hit roll by 7 for 59 hours.
Spell: 'haste' modifies dexterity by 4 for 20 hours.
Commune: 'armor' modifies armor class by -20 for 19 hours.
Spell: 'stone skin' modifies armor class by -60 for 0 hours.
Skill: 'burrow' for -1 hours.
Physical effect: 'form bonus' modifies dexterity by 2 for -1 hours.
Power: 'unbound spirit' modifies wisdom by 2 for -1 hours.
Power: 'unbound spirit' modifies morale by 10 for -1 hours.

n/t