A few days ago, the Corps of Engineers announced that as of October 1, they will no longer allow bicycle and pedestrian access to South Holiday Park. This is due to several things, including the retirement of the previous park ranger, and violations of the rules to use the park. Access to the lake road is very important. Cycling through the park leads to more country roads further to the southwest. Many of these country roads beyond the lake have very little traffic and are safe. If access to South Holiday Park is closed, that forces a cyclist to ride on US 377, which is very dangerous. Cyclists have been killed using the highway. The other alternative is Aledo/Iona Road, which is becoming more heavily congested with traffic as more homes are built toward Aledo and beyond. These roads are not safe.
The Fort Worth Bicycling Association's Facebook page has some good discussion on the matter.
You can also sign a petition to keep the park open. The link to the petition is here: