Is this a fragment comma splice or run on sentence Jay went sightseeing his own and caught up with the group later?

Here's why:

* Two independent clauses: The sentence has two parts that could stand alone as complete sentences: "Jay went sightseeing" and "he caught up with the group later."

* Incorrectly joined with a comma: The comma is not enough to correctly join the two independent clauses.

How to fix it:

You can fix the comma splice in a few ways:

1. Use a semicolon: Jay went sightseeing; he caught up with the group later.

2. Use a coordinating conjunction: Jay went sightseeing, and he caught up with the group later.

3. Make one clause dependent: After going sightseeing on his own, Jay caught up with the group later.