I've been there for a weekend trip. Note that San-Lee is not an "RV park." It is a municipal park with ~10 sites. Be aware, too, that not all sites have hookups and large vehicles (30'+) may have difficulty navigating the interior roads. You'll also need approval for long-term stays. Depending on you needs, you might also look at the the Jordan Dam RV Park in Moncure.
2008 Dodge Ram 1500 (aka Rusty)
2017 Kodiak 172e Hybrid (aka Roxy)