Formal:
* "Come, let us hence." This is a classic way to say "let's go" and emphasizes a sense of moving on.
* "Away, and let us hie!" This conveys a sense of urgency and excitement.
* "Let's forth, and tarry not." This is a bit more direct and emphasizes the act of leaving.
Informal:
* "Hark, let's away!" This uses the interjection "Hark!" to capture a sense of suddenness or excitement.
* "Come, let us be gone." This is a simple and straightforward way to say "let's go."
More specific:
* "Let us to the tavern, where we may quaff and jest." This specifies where you're going and what you'll be doing.
* "Let us to the battlefield, where we may prove our valor." This emphasizes the purpose of the journey.
Remember, you can always adapt these phrases to fit the specific situation and tone you're aiming for.