The cell at the end of the rainbow
54 Bytes

------[&gt;+++&lt;--]&gt;[-&gt;----[-[-&gt;+&lt;]&lt;[-&gt;+&lt;]&gt;&gt;]&lt;]&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;.


119 x 252 = 29988. Straightforward nested loop.

I used this tool to verify that the pointer stops at 29999.