I like this picture of the Union League Boys Club Camp Pool and just how close League Lake is to the pool. The pool was highly preferable to counselors and campers alike due to the high algae content of League Lake. In fact in close proximity to the swimming area in the lake was a stretch of algae just beyond the pool.
The pool was about four feet deep and an excellent place to teach swimming. Games were also played there such as water volleyball and tag. I myself enjoyed lounging in the pool whenever possible especially on my off days as a counselor.
The lake was great for boating and fishing and then there was always the lagoon, not far from the swimming area, that led to where the legendary Swamp Man was said to live. ULBC had a great waterfront that was always filled with activity.